/* ===================================================================
   SKYFLY CHILE — MAIN STYLESHEET
   Servicios de Drone y Capacitación RPAS en Osorno, Región de los Lagos
   =================================================================== */

/* ===================================
   1. ROOT & VARIABLES
   =================================== */
:root {
    --primary: #111111;
    --primary-rgb: 17, 17, 17;
    --secondary: #333333;
    --secondary-rgb: 51, 51, 51;
    --accent: #222222;
    --accent-rgb: 34, 34, 34;
    --danger: #ff4757;

    --dark: #ffffff;
    --dark-2: #f5f5f5;
    --dark-3: #eeeeee;
    --dark-4: #e0e0e0;

    --text: #111111;
    --text-muted: #555555;
    --text-dim: #888888;

    --border: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 0, 0, 0.25);

    --glass-bg: rgba(0, 0, 0, 0.03);
    --glass-border: rgba(0, 0, 0, 0.08);

    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
    --gradient-accent: linear-gradient(135deg, var(--primary), #444444);

    --font-heading: 'Syne', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 100px;

    --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 40px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 40px rgba(0, 0, 0, 0.06);
    --shadow-glow-strong: 0 0 60px rgba(0, 0, 0, 0.1);

    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;

    --navbar-height: 80px;
}

/* ===================================
   2. RESET & BASE
   =================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--dark);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

img, video {
    max-width: 100%;
    display: block;
}

input, textarea, select, button {
    font-family: var(--font-body);
    border: none;
    outline: none;
    background: none;
}

::selection {
    background: rgba(var(--primary-rgb), 0.3);
    color: var(--text);
}

/* ===================================
   3. UTILITIES
   =================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .text-gradient {
    background: linear-gradient(135deg, #ffffff, #cccccc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 64px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ===================================
   4. BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.92rem;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn--primary {
    background: var(--gradient);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.btn--outline {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn--whatsapp {
    background: #25D366;
    color: #fff;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.btn--whatsapp:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.45);
}

.btn--lg {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn--full {
    width: 100%;
}

/* ===================================
   5. NAVBAR
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 24px;
    height: var(--navbar-height);
    transition: all var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.navbar__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.navbar__logo {
    display: flex;
    align-items: center;
    z-index: 1001;
}

.navbar__logo-img {
    height: 44px;
    width: auto;
    transition: all var(--transition);
}

.navbar__logo:hover .navbar__logo-img {
    filter: brightness(1.15);
}

.navbar.scrolled .navbar__logo-img {
    filter: invert(1);
}

.navbar.scrolled .navbar__logo:hover .navbar__logo-img {
    filter: invert(1) brightness(0.8);
}

.navbar__menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.navbar__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.75);
    position: relative;
    padding: 4px 0;
    transition: color var(--transition);
}

.navbar__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width var(--transition);
}

.navbar__link:hover,
.navbar__link.active {
    color: #ffffff;
}

.navbar.scrolled .navbar__link {
    color: var(--text-muted);
}

.navbar.scrolled .navbar__link:hover,
.navbar.scrolled .navbar__link.active {
    color: var(--text);
}

.navbar__link:hover::after,
.navbar__link.active::after {
    width: 100%;
}

.navbar__cta {
    padding: 10px 24px;
    font-size: 0.85rem;
}

.navbar__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
    background: none;
    border: none;
    padding: 4px;
}

.navbar__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #ffffff;
    transition: all var(--transition);
    border-radius: 2px;
}

.navbar.scrolled .navbar__toggle span {
    background: var(--text);
}

.navbar__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
    background: var(--text);
}

.navbar__toggle.active span:nth-child(2) {
    opacity: 0;
}

.navbar__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    background: var(--text);
}

/* ===================================
   6. HERO
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #0a0a0a;
}

.hero::before {
    content: '';
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(var(--primary-rgb), 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(var(--secondary-rgb), 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(var(--accent-rgb), 0.05) 0%, transparent 40%);
    animation: heroBreathe 10s ease-in-out infinite alternate;
    z-index: 1;
}

@keyframes heroBreathe {
    0% { opacity: 0.5; transform: scale(1) rotate(0deg); }
    100% { opacity: 1; transform: scale(1.15) rotate(3deg); }
}

.hero__video-wrap {
    position: absolute;
    inset: 0;
    z-index: 2;
    overflow: hidden;
    pointer-events: none;
}

.hero__video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 110vw;
    height: 110vh;
    min-width: 200vh;
    min-height: 70vw;
    transform: translate(-50%, -50%) scale(1.2);
    border: 0;
}

.hero__particles {
    position: absolute;
    inset: 0;
    z-index: 3;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.6) 0%,
        rgba(0, 0, 0, 0.3) 40%,
        rgba(0, 0, 0, 0.5) 70%,
        #f5f5f5 100%
    );
    z-index: 4;
}

.hero__content {
    position: relative;
    z-index: 5;
    text-align: center;
    padding-top: var(--navbar-height);
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 0.5px;
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
}

.hero h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2.8rem, 6.5vw, 5rem);
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
    color: #ffffff;
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.7);
    max-width: 640px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero__subtitle strong {
    color: #ffffff;
}

.hero__buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 5;
}

.hero__scroll span {
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
}

.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.2; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ===================================
   7. SERVICES
   =================================== */
.services {
    padding: 120px 0;
    background: var(--dark-2);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.08), transparent);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    max-width: 900px;
    margin: 0 auto;
}

.service-card {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: all 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.5s ease;
    transform-origin: left;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card--featured {
    border-color: transparent;
    background:
        linear-gradient(var(--dark-2), var(--dark-2)) padding-box,
        var(--gradient) border-box;
    position: relative;
}

.service-card__badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 6px 14px;
    background: var(--gradient);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.service-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 1.4rem;
    color: var(--primary);
    transition: all var(--transition);
}

.service-card:hover .service-card__icon {
    background: var(--gradient);
    color: #ffffff;
    transform: scale(1.05);
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card > p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-card__features {
    margin-bottom: 24px;
}

.service-card__features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-muted);
    padding: 6px 0;
}

.service-card__features li i {
    color: var(--accent);
    font-size: 0.75rem;
}

.service-card__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    padding-top: 12px;
    border-top: 1px solid var(--border);
    width: 100%;
}

.service-card__link:hover {
    gap: 14px;
    color: var(--accent);
}

/* ===================================
   8. ABOUT
   =================================== */
.about {
    padding: 120px 0;
    background: var(--dark);
}

.about__grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 64px;
    align-items: center;
}

.about__content .section-tag {
    display: inline-flex;
}

.about__content h2 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.about__content p {
    color: var(--text-muted);
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.8;
}

.about__content p strong {
    color: var(--text);
}

.about__badges {
    display: flex;
    gap: 24px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.about__badge {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 24px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-md);
    transition: all var(--transition);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.about__badge:hover {
    border-color: rgba(var(--primary-rgb), 0.3);
    transform: translateY(-2px);
}

.about__badge i {
    font-size: 1.5rem;
    color: var(--primary);
}

.about__badge strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
}

.about__badge span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.about__founder-card {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-xl);
    padding: 48px 36px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.about__founder-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
}

.about__founder-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: 50%;
    font-size: 2rem;
    color: #ffffff;
    margin: 0 auto 20px;
    box-shadow: var(--shadow-glow);
}

.about__founder-card h4 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.about__founder-role {
    display: block;
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 16px;
}

.about__founder-card > p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.about__founder-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.about__founder-tags span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(var(--primary-rgb), 0.08);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    color: var(--primary);
}

/* ===================================
   9. STATS
   =================================== */
.stats {
    padding: 80px 0;
    background: #111111;
    border-top: none;
    border-bottom: none;
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat__icon {
    font-size: 1.5rem;
    color: #ffffff;
    margin-bottom: 12px;
}

.stat__number {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff, #cccccc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
}

.stat__suffix {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    display: inline;
}

.stat__label {
    font-size: 0.9rem;
    color: #999999;
    margin-top: 4px;
    font-weight: 500;
}

/* ===================================
   10. VIDEO SHOWCASE
   =================================== */
.showcase {
    padding: 120px 0;
    background: var(--dark-2);
    font-family: 'Outfit', sans-serif;
}

.showcase .section-header h2 {
    font-family: 'Outfit', sans-serif;
}

.showcase .section-header p {
    font-family: 'Outfit', sans-serif;
}

.showcase .section-tag {
    font-family: 'Outfit', sans-serif;
}

.showcase__frame {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.showcase__player {
    position: relative;
    aspect-ratio: 16 / 9;
    background: #eeeeee;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
}

.showcase__player video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
}

.showcase__placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark-3), var(--dark-4));
    z-index: 2;
}

.showcase__placeholder.hidden {
    display: none;
}

.showcase__placeholder-content {
    text-align: center;
    padding: 40px;
}

.showcase__placeholder-icon {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--primary-rgb), 0.1);
    border: 2px solid rgba(var(--primary-rgb), 0.2);
    border-radius: 50%;
    margin: 0 auto 24px;
    font-size: 2.5rem;
    color: var(--primary);
    animation: dronePulse 3s ease-in-out infinite;
}

@keyframes dronePulse {
    0%, 100% { transform: translateY(0); box-shadow: 0 0 30px rgba(var(--primary-rgb), 0.1); }
    50% { transform: translateY(-10px); box-shadow: 0 15px 40px rgba(var(--primary-rgb), 0.2); }
}

.showcase__placeholder h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.showcase__placeholder > .showcase__placeholder-content > p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.showcase__placeholder code {
    background: rgba(var(--primary-rgb), 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--primary);
}

.showcase__placeholder-features {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.showcase__placeholder-features span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(var(--primary-rgb), 0.06);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    color: var(--primary);
}

.showcase__glow {
    position: absolute;
    inset: -2px;
    background: rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.3;
    filter: blur(20px);
    animation: glowPulse 4s ease-in-out infinite alternate;
}

@keyframes glowPulse {
    0% { opacity: 0.2; }
    100% { opacity: 0.5; }
}

/* ===================================
   10b. FAQ SECTION
   =================================== */
.faq {
    padding: 120px 0;
    background: var(--dark);
}

.faq__grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq__item {
    background: var(--dark-2);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq__item[open] {
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.faq__question {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    color: var(--text);
    transition: color 0.2s;
}

.faq__question::-webkit-details-marker {
    display: none;
}

.faq__question i {
    font-size: 0.75rem;
    transition: transform 0.3s;
    color: var(--text-muted);
    flex-shrink: 0;
}

.faq__item[open] .faq__question i {
    transform: rotate(90deg);
}

.faq__answer {
    padding: 0 24px 20px 56px;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq__answer p {
    margin: 0;
}

/* ===================================
   11. WHY US
   =================================== */
.why-us {
    padding: 120px 0;
    background: var(--dark);
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.why-us__item {
    text-align: center;
    padding: 40px 28px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-lg);
    transition: all 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.why-us__item:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.why-us__icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--primary-rgb), 0.08);
    border-radius: var(--radius-md);
    margin: 0 auto 20px;
    font-size: 1.5rem;
    color: var(--primary);
    transition: all var(--transition);
}

.why-us__item:hover .why-us__icon {
    background: var(--gradient);
    color: #ffffff;
    transform: scale(1.1) rotate(5deg);
}

.why-us__item h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.why-us__item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===================================
   12. TIMELINE
   =================================== */
.timeline {
    padding: 120px 0;
    background: var(--dark-2);
}

.timeline__track {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.timeline__line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary), var(--accent));
    transform: translateX(-50%);
}

.timeline__item {
    position: relative;
    display: flex;
    align-items: flex-start;
    margin-bottom: 48px;
    padding-right: calc(50% + 40px);
    text-align: right;
}

.timeline__item--right {
    padding-right: 0;
    padding-left: calc(50% + 40px);
    text-align: left;
    flex-direction: row-reverse;
}

.timeline__dot {
    position: absolute;
    left: 50%;
    top: 8px;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border: 3px solid #ffffff;
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.15);
}

.timeline__year {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: #ffffff;
    background: var(--primary);
    padding: 4px 14px;
    border-radius: var(--radius-full);
    display: inline-block;
    margin-bottom: 12px;
}

.timeline__card {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.timeline__card h4 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.timeline__card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===================================
   13. TESTIMONIALS
   =================================== */
.testimonials {
    padding: 120px 0;
    background: var(--dark);
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.testimonial-card {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: all 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.testimonial-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.testimonial-card__stars {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
}

.testimonial-card__stars i {
    color: #ff9800;
    font-size: 0.9rem;
}

.testimonial-card__text {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.testimonial-card__avatar {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.85rem;
    color: #ffffff;
}

.testimonial-card__author strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
}

.testimonial-card__author span {
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* ===================================
   14. CTA
   =================================== */
.cta {
    padding: 100px 0;
    background:
        linear-gradient(135deg, rgba(var(--primary-rgb), 0.08), rgba(var(--secondary-rgb), 0.08));
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(var(--primary-rgb), 0.08), transparent 70%);
    border-radius: 50%;
}

.cta__content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta h2 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.cta p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.cta__buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   15. CONTACT
   =================================== */
.contact {
    padding: 120px 0;
    background: var(--dark-2);
}

.contact__grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 64px;
    align-items: flex-start;
}

.contact__info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
}

.contact__info-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-size: 1.1rem;
}

.contact__info-item h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.contact__info-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.contact__social {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.contact__social a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: all var(--transition);
}

.contact__social a:hover {
    background: var(--gradient);
    color: #ffffff;
    border-color: transparent;
    transform: translateY(-3px);
}

.contact__form {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-xl);
    padding: 44px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
}

.honeypot-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.contact__form input,
.contact__form select,
.contact__form textarea {
    width: 100%;
    padding: 16px 20px;
    background: #f8f8f8;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-md);
    color: var(--text);
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.contact__form input::placeholder,
.contact__form textarea::placeholder {
    color: var(--text-dim);
}

.contact__form select {
    cursor: pointer;
    color: var(--text-dim);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238892a6'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.contact__form select option {
    background: #ffffff;
    color: var(--text);
}

.contact__form input:focus,
.contact__form select:focus,
.contact__form textarea:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.05);
}

.contact__form textarea {
    resize: vertical;
    min-height: 120px;
}

.form-success {
    display: none;
    text-align: center;
    padding: 24px;
    margin-top: 16px;
    background: rgba(var(--accent-rgb), 0.08);
    border: 1px solid rgba(var(--accent-rgb), 0.2);
    border-radius: var(--radius-md);
}

.form-success.show {
    display: block;
    animation: fadeInUp 0.5s ease;
}

.form-success i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.form-success p {
    color: var(--accent);
    font-weight: 500;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===================================
   16. FOOTER
   =================================== */
.footer {
    background: #111111;
    padding: 80px 0 32px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    color: #cccccc;
}

.footer .footer__brand > p,
.footer .footer__links a,
.footer .footer__links p,
.footer .footer__social a {
    color: #999999;
}

.footer .footer__links h4 {
    color: #ffffff;
}

.footer .footer__social a {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
}

.footer .footer__bottom {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.footer .footer__bottom p {
    color: #666666;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer__logo {
    display: inline-block;
    margin-bottom: 16px;
}

.footer__logo-img {
    height: 40px;
    width: auto;
}

.footer__brand > p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer__social {
    display: flex;
    gap: 10px;
}

.footer__social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 1rem;
    transition: all var(--transition);
}

.footer__social a:hover {
    background: var(--gradient);
    color: #ffffff;
    border-color: transparent;
    transform: translateY(-2px);
}

.footer__links h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text);
}

.footer__links a,
.footer__links p {
    display: block;
    font-size: 0.88rem;
    color: var(--text-muted);
    padding: 5px 0;
    transition: all var(--transition);
}

.footer__links a:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.footer__bottom p {
    font-size: 0.82rem;
    color: var(--text-dim);
}

/* ===================================
   ABOUT — MISIÓN, VISIÓN, VALORES
   =================================== */
.about__mvv {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.about__mvv-item {
    background: rgba(var(--primary-rgb), 0.03);
    border: 1px solid rgba(var(--primary-rgb), 0.08);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: all var(--transition);
}

.about__mvv-item:hover {
    border-color: rgba(var(--primary-rgb), 0.2);
    box-shadow: var(--shadow-sm);
}

.about__mvv-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: var(--radius-md);
    color: #ffffff;
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.about__mvv-item h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.about__mvv-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
}

.about__values {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.about__value {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: #ffffff;
    border: 1px solid rgba(var(--primary-rgb), 0.1);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    transition: all var(--transition);
}

.about__value:hover {
    background: var(--primary);
    color: #ffffff;
    border-color: transparent;
    transform: translateY(-2px);
}

.about__value i {
    font-size: 0.85rem;
    color: var(--primary);
}

.about__value:hover i {
    color: #ffffff;
}

/* ===================================
   CURSO RPAS
   =================================== */
.curso {
    padding: 120px 0;
    background: #111111;
    color: #ffffff;
}

.curso .section-tag {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.7);
}

.curso .section-header h2 {
    color: #ffffff;
}

.curso .section-header p {
    color: rgba(255, 255, 255, 0.6);
}

.curso .text-gradient {
    background: linear-gradient(135deg, #ffffff, #aaaaaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.curso__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
    align-items: start;
}

.curso__block {
    margin-bottom: 36px;
}

.curso__block h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #ffffff;
}

.curso__block h3 i {
    color: rgba(255, 255, 255, 0.5);
}

.curso__list {
    display: grid;
    gap: 12px;
}

.curso__list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.75);
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.curso__list li:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
}

.curso__list li i {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.85rem;
    width: 20px;
    flex-shrink: 0;
}

.curso__price-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
    position: sticky;
    top: 100px;
}

.curso__price-badge {
    display: inline-block;
    padding: 6px 18px;
    background: linear-gradient(135deg, #ffffff, #cccccc);
    color: #111111;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.curso__price {
    margin-bottom: 28px;
}

.curso__price-currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.6);
    vertical-align: top;
}

.curso__price-amount {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1;
}

.curso__price-period {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.5);
    display: block;
    margin-top: 4px;
}

.curso__price-features {
    text-align: left;
    margin-bottom: 28px;
}

.curso__price-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.7);
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.curso__price-features li:last-child {
    border-bottom: none;
}

.curso__price-features li i {
    color: #ffffff;
    font-size: 0.8rem;
}

.curso__price-note {
    margin-top: 16px;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1.6;
}

.curso__price-note i {
    margin-right: 4px;
}

/* Curso Gallery */
.curso__gallery {
    margin-top: 80px;
}

.curso__gallery-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.curso__gallery-title i {
    color: rgba(255, 255, 255, 0.4);
}

.curso__gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.curso__gallery-grid img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.4s ease;
    cursor: pointer;
}

.curso__gallery-grid img:hover {
    transform: scale(1.03);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

/* ===================================
   17. RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .curso__grid {
        grid-template-columns: 1fr;
    }

    .curso__price-card {
        position: static;
    }

    .curso__gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .about__grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .why-us__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --navbar-height: 70px;
    }

    .navbar__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 360px;
        height: 100vh;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        padding: 100px 40px 40px;
        gap: 24px;
        transition: right 0.4s ease;
        border-left: 1px solid var(--border);
        z-index: 1000;
    }

    .navbar__menu.open {
        right: 0;
    }

    .navbar__menu .navbar__link {
        color: var(--text);
    }

    .navbar__menu .navbar__link:hover,
    .navbar__menu .navbar__link.active {
        color: var(--primary);
    }

    .navbar__link {
        font-size: 1.1rem;
    }

    .navbar__cta {
        display: none;
    }

    .navbar__toggle {
        display: flex;
    }

    .hero h1 {
        font-size: clamp(2rem, 7vw, 3rem);
    }

    .hero__buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero__scroll {
        display: none;
    }

    .services__grid {
        grid-template-columns: 1fr;
    }

    .about__mvv {
        grid-template-columns: 1fr;
    }

    .curso__gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .curso__gallery-wide {
        grid-column: span 1;
    }

    .stats__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .why-us__grid {
        grid-template-columns: 1fr;
    }

    .timeline__line {
        left: 20px;
    }

    .timeline__item,
    .timeline__item--right {
        padding-left: 56px;
        padding-right: 0;
        text-align: left;
        flex-direction: row;
    }

    .timeline__dot {
        left: 20px;
    }

    .testimonials__grid {
        grid-template-columns: 1fr;
    }

    .contact__grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .contact__form {
        padding: 28px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .footer__bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .cta__buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero__badge {
        font-size: 0.75rem;
        padding: 8px 16px;
    }

    .service-card {
        padding: 28px 24px;
    }

    .stats__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .showcase__placeholder-features {
        flex-direction: column;
        align-items: center;
    }
}

/* ===================================
   18. ANIMATIONS & EFFECTS
   =================================== */

/* Smooth section fade-in */
section {
    position: relative;
}

/* Mobile menu backdrop */
.navbar__backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.navbar__backdrop.show {
    display: block;
}

/* Loading animation for stats */
.stat__number {
    transition: none;
}

/* Focus styles for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .navbar,
    .hero__particles,
    .hero__scroll,
    .showcase__glow,
    .whatsapp-float {
        display: none;
    }

    body {
        background: #fff;
        color: #000;
    }
}

/* ===================================
   19. WHATSAPP FLOATING BUTTON
   =================================== */
.whatsapp-float {
    position: fixed;
    bottom: 32px;
    left: 32px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: #ffffff;
    border-radius: 50%;
    font-size: 1.7rem;
    z-index: 9999;
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.4);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-4px);
    box-shadow: 0 12px 36px rgba(37, 211, 102, 0.5);
}

.whatsapp-float::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid rgba(37, 211, 102, 0.3);
    animation: whatsappPing 2s ease-out infinite;
}

@keyframes whatsappPing {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

.whatsapp-float__tooltip {
    position: absolute;
    left: calc(100% + 14px);
    top: 50%;
    transform: translateY(-50%);
    background: #111111;
    color: #ffffff;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    transform: translateY(-50%) translateX(-8px);
}

.whatsapp-float__tooltip::before {
    content: '';
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-right-color: #111111;
}

.whatsapp-float:hover .whatsapp-float__tooltip {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

/* ===================================
   20. MODERN REFINEMENTS
   =================================== */

/* Elegant section dividers */
.services::before {
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.08), transparent);
}

/* Smooth card transitions */
.service-card,
.why-us__item,
.testimonial-card,
.timeline__card,
.about__badge,
.about__founder-card {
    will-change: transform;
}

/* Hover glow for cards - refined */
@media (hover: hover) {
    .service-card:hover,
    .why-us__item:hover,
    .testimonial-card:hover {
        box-shadow: 0 25px 50px rgba(0, 0, 0, 0.08);
    }

    .about__badge:hover {
        transform: translateY(-3px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    }
}

/* Section tag pill - refined */
.section-tag {
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.72rem;
}

/* Mobile WhatsApp */
@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 20px;
        left: 20px;
        width: 54px;
        height: 54px;
        font-size: 1.5rem;
    }

    .whatsapp-float__tooltip {
        display: none;
    }
}