/* ==========================================================================
   Tu Publicidad — Main Stylesheet (Light Theme)
   ========================================================================== */

/* ----- CSS Custom Properties ----- */
:root {
    --red:            #FF1818;
    --red-dark:       #dd0f0f;
    --blue:           #1599D0;
    --blue-dark:      #0e80b5;
    /* Gradiente decorativo rojo→azul, solo para líneas/acentos cortos */
    --gradient-accent: linear-gradient(90deg, #FF1818 0%, #1599D0 100%);
    /* Azul dominante para fondos y botones */
    --gradient:       linear-gradient(135deg, #1888c8 0%, #0d78b0 100%);
    --gradient-soft:  rgba(21,153,208,0.07);

    /* Backgrounds */
    --bg:             #ffffff;
    --bg-2:           #f7f8fb;
    --bg-3:           #eef1f7;
    --bg-card:        #ffffff;

    /* Text */
    --text:           #111827;
    --text-muted:     #6b7280;
    --text-light:     #374151;

    /* Borders */
    --border:         rgba(0,0,0,0.08);
    --border-hover:   rgba(212,43,43,0.35);

    /* Shadow */
    --shadow-sm:      0 1px 4px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
    --shadow-md:      0 4px 20px rgba(0,0,0,0.09), 0 1px 4px rgba(0,0,0,0.05);
    --shadow-card:    0 2px 12px rgba(0,0,0,0.06);

    /* Layout */
    --header-h:       70px;
    --radius:         14px;
    --radius-sm:      8px;
    --ease:           cubic-bezier(0.4, 0, 0.2, 1);
    --t:              0.28s;
    --font:           'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --container:      1160px;
}

/* ----- Reset ----- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: var(--font); cursor: pointer; }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0;
    margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
    white-space: nowrap; border: 0;
}

:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
#header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    height: var(--header-h);
    transition: background var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

#header.scrolled {
    background: rgba(255,255,255,0.94);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 var(--border), 0 4px 24px rgba(0,0,0,0.07);
}

.nav-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo img { height: 44px; width: auto; object-fit: contain; display: block; }

.nav-links { display: flex; align-items: center; gap: 4px; }

.nav-link {
    display: block;
    padding: 8px 15px;
    font-size: 0.875rem;
    font-weight: 500;
    /* Blanco al cargar (sobre hero oscuro) */
    color: rgba(255,255,255,0.88);
    border-radius: var(--radius-sm);
    letter-spacing: 0.01em;
    transition: color var(--t), background var(--t);
    white-space: nowrap;
}

.nav-link:hover { color: #fff; background: rgba(255,255,255,0.1); }
.nav-link.active { color: #fff; font-weight: 700; }

/* Cuando el header tiene fondo blanco → links oscuros */
#header.scrolled .nav-link {
    color: var(--text-light);
}
#header.scrolled .nav-link:hover {
    color: var(--text);
    background: rgba(0,0,0,0.04);
}
#header.scrolled .nav-link.active {
    color: var(--red);
}

/* Hamburger: blanco por defecto, oscuro al hacer scroll */
.menu-toggle span { background: #fff; }
#header.scrolled .menu-toggle span { background: var(--text); }
#header.scrolled .menu-toggle { border-color: var(--border); }

.btn-contact {
    background: var(--blue);
    color: #fff !important;
    font-weight: 700;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    transition: opacity var(--t), transform var(--t), box-shadow var(--t) !important;
}

.btn-contact:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(21,153,208,0.45);
    color: #fff !important;
    background: var(--blue-dark) !important;
}

/* Hamburger */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px;
    transition: border-color var(--t);
}

.menu-toggle:hover { border-color: var(--red); }

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.35s var(--ease), opacity 0.25s;
}

.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   HERO  (mantiene imagen con overlay oscuro para legibilidad del texto)
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 620px;
    max-height: 1000px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: -10% 0;
    background: url('../assets/slide_bg.jpg') center/cover no-repeat;
    will-change: transform;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        160deg,
        rgba(10,10,30,0.52) 0%,
        rgba(10,10,30,0.65) 55%,
        rgba(10,10,30,0.82) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 820px;
    padding: 0 24px;
    padding-top: var(--header-h);
}

.hero-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #ffd0cc;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(18px);
    animation: fadeUp 0.8s var(--ease) 0.2s forwards;
}

.hero-title {
    font-size: clamp(3.2rem, 9vw, 7.5rem);
    font-weight: 900;
    letter-spacing: -0.025em;
    line-height: 1;
    margin-bottom: 24px;
    color: #ffffff;
    opacity: 0;
    transform: translateY(24px);
    animation: fadeUp 0.85s var(--ease) 0.4s forwards;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    color: rgba(255,255,255,0.85);
    line-height: 1.75;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(18px);
    animation: fadeUp 0.8s var(--ease) 0.65s forwards;
}

.hero-subtitle strong { color: #fff; font-weight: 700; }

.hero-btn {
    opacity: 0;
    transform: translateY(16px);
    animation: fadeUp 0.8s var(--ease) 0.9s forwards;
}

.hero-btn i {
    display: inline-flex;
    align-items: center;
    line-height: 1;
    animation: blink-down 2s ease-in-out infinite 1.8s;
}

.scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    opacity: 0;
    animation: fadeUp 0.8s ease 1.4s forwards;
}

.scroll-line {
    width: 1.5px;
    height: 56px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.7), transparent);
    margin: 0 auto;
    animation: pulse-line 2s ease-in-out infinite;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    line-height: 1;
    background: var(--blue);
    color: #fff;
    font-family: var(--font);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: none;
    border-radius: var(--radius-sm);
    transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), opacity var(--t);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 36px rgba(21,153,208,0.45);
    color: #fff;
}

.btn-primary:active { transform: translateY(0); }

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    background: transparent;
    color: var(--red);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border: 1.5px solid var(--red);
    border-radius: var(--radius-sm);
    transition: background var(--t), color var(--t), transform var(--t), box-shadow var(--t);
    margin-top: 8px;
}

.btn-outline:hover {
    background: var(--red);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212,43,43,0.28);
}

/* ==========================================================================
   STATS
   ========================================================================== */
.stats-section {
    padding: 88px 0;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stats-label {
    text-align: center;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.25em;
    color: var(--red);
    text-transform: uppercase;
    margin-bottom: 56px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.stat-item {
    padding: 44px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-card);
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s var(--ease), transform 0.65s var(--ease), box-shadow var(--t), border-color var(--t);
}

.stat-item.visible { opacity: 1; transform: translateY(0); }

.stat-item:hover {
    border-color: rgba(212,43,43,0.2);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px) !important;
}

.stat-number {
    font-size: clamp(2.6rem, 5vw, 4.2rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--blue);
    margin-bottom: 14px;
}

.stat-desc {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.04em;
}

/* ==========================================================================
   SECTION HEADER (shared)
   ========================================================================== */
.section-header { text-align: center; margin-bottom: 64px; }

.section-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 900;
    letter-spacing: -0.025em;
    line-height: 1.1;
    color: var(--text);
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 520px;
    margin: 0 auto;
}

/* ==========================================================================
   SERVICES
   ========================================================================== */
.services-section {
    padding: 104px 0;
    background: var(--bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.service-card {
    position: relative;
    padding: 48px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 0.65s var(--ease),
        transform 0.65s var(--ease),
        box-shadow var(--t),
        border-color var(--t);
}

.service-card.visible { opacity: 1; transform: translateY(0); }

.service-card:hover {
    border-color: rgba(212,43,43,0.2);
    box-shadow: var(--shadow-md);
    transform: translateY(-6px) !important;
}

.service-line {
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 3px;
    background: var(--gradient-accent);
    border-radius: 0 0 0 var(--radius);
    transition: width 0.45s var(--ease);
}

.service-card:hover .service-line { width: 100%; }

.service-icon {
    width: 58px;
    height: 58px;
    background: rgba(212,43,43,0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.45rem;
    color: var(--red);
    margin-bottom: 24px;
    transition: background var(--t), color var(--t), transform var(--t);
}

.service-card:hover .service-icon {
    background: var(--blue);
    color: #fff;
    transform: scale(1.08);
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
    color: var(--text);
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.75;
}

/* ==========================================================================
   ABOUT / REDES SOCIALES
   ========================================================================== */
.about-section {
    padding: 104px 0;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text { display: flex; flex-direction: column; gap: 20px; }
.about-text .section-title { text-align: left; margin-bottom: 4px; }
.about-text .section-tag   { text-align: left; }

.about-text p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.8;
}

.about-text p strong { color: var(--text-light); font-weight: 600; }

.icon-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.icon-box {
    aspect-ratio: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--text-muted);
    box-shadow: var(--shadow-sm);
    transition: background var(--t), color var(--t), border-color var(--t), transform var(--t), box-shadow var(--t);
}

.icon-box:hover {
    background: var(--gradient-soft);
    color: var(--red);
    border-color: rgba(212,43,43,0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   CLIENTS SLIDER
   ========================================================================== */
.clients-section {
    padding: 88px 0;
    background: var(--bg);
    border-top: 1px solid var(--border);
    overflow: hidden;
}

.clients-slider-wrapper {
    margin-top: 48px;
    overflow: hidden;
    mask-image: linear-gradient(to right, transparent 0%, black 12%, black 88%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 12%, black 88%, transparent 100%);
}

.clients-track {
    display: flex;
    gap: 20px;
    width: max-content;
    animation: slide-loop 28s linear infinite;
}

.clients-track:hover { animation-play-state: paused; }

.client-logo { flex-shrink: 0; width: 180px; height: 88px; }

.client-logo a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    box-shadow: var(--shadow-sm);
    transition: border-color var(--t), transform var(--t), box-shadow var(--t);
}

.client-logo a:hover {
    border-color: rgba(212,43,43,0.25);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.client-logo img {
    max-height: 52px;
    width: auto;
    margin: 0 auto;
    filter: grayscale(1) opacity(0.45);
    transition: filter var(--t);
}

.client-logo a:hover img { filter: grayscale(0) opacity(1); }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-section {
    padding: 104px 0;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 72px;
    align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 20px; }

.contact-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
    line-height: 1.4;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    transition: border-color var(--t), transform var(--t), box-shadow var(--t);
}

.contact-card:hover {
    border-color: rgba(212,43,43,0.2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-card i:first-child {
    font-size: 1.4rem;
    color: var(--red);
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.contact-card > div {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-card strong {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.contact-card span {
    font-size: 0.95rem;
    color: var(--text-light);
}

.whatsapp-card { border-color: rgba(37,211,102,0.2); }
.whatsapp-card:hover { border-color: rgba(37,211,102,0.45); }
.whatsapp-card i:first-child { color: #1a9e4c; }
.whatsapp-card .arrow { color: var(--text-muted); font-size: 0.9rem; }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 14px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-group { display: flex; flex-direction: column; }

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.95rem;
    line-height: 1.5;
    outline: none;
    transition: border-color var(--t), box-shadow var(--t);
    -webkit-appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-group input:hover,
.form-group textarea:hover { border-color: rgba(0,0,0,0.18); }

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--red);
    box-shadow: 0 0 0 3px rgba(212,43,43,0.1);
}

.form-group textarea { resize: vertical; min-height: 140px; }

.btn-submit { align-self: flex-start; font-size: 0.9rem; }

.btn-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none !important;
}

.form-feedback {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    display: none;
    animation: fadeUp 0.4s var(--ease) forwards;
}

.form-feedback.success {
    display: block;
    background: rgba(22,163,74,0.08);
    border: 1px solid rgba(22,163,74,0.25);
    color: #15803d;
}

.form-feedback.error {
    display: block;
    background: rgba(212,43,43,0.07);
    border: 1px solid rgba(212,43,43,0.25);
    color: var(--red);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background: var(--text);
    padding: 56px 0 28px;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding-bottom: 40px;
    margin-bottom: 28px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    flex-wrap: wrap;
}

.footer-brand { display: flex; flex-direction: column; gap: 14px; }

.footer-brand img {
    width: 160px;
    height: auto;
}

.footer-brand p {
    color: rgba(255,255,255,0.5);
    font-size: 0.88rem;
    max-width: 300px;
    line-height: 1.6;
}

.footer-nav { display: flex; gap: 28px; flex-wrap: wrap; }

.footer-nav a {
    color: rgba(255,255,255,0.45);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--t);
}

.footer-nav a:hover { color: rgba(255,255,255,0.9); }

.footer-bottom {
    text-align: center;
    color: rgba(255,255,255,0.3);
    font-size: 0.8rem;
}

/* ==========================================================================
   WHATSAPP FLOATING BUTTON
   ========================================================================== */
.wa-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 998;
    width: 62px;
    height: 62px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    color: #fff;
    box-shadow: 0 4px 20px rgba(37,211,102,0.45);
    opacity: 0;
    animation: pop-in 0.6s var(--ease) 1.5s forwards;
    transition: transform var(--t), box-shadow var(--t);
}

.wa-float:hover {
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 10px 32px rgba(37,211,102,0.6);
    color: #fff;
}

.wa-tooltip {
    position: absolute;
    right: 70px;
    padding: 6px 14px;
    background: var(--text);
    color: #fff;
    font-size: 0.84rem;
    font-weight: 600;
    white-space: nowrap;
    border-radius: var(--radius-sm);
    opacity: 0;
    transform: translateX(6px);
    transition: opacity var(--t), transform var(--t);
    pointer-events: none;
    box-shadow: var(--shadow-md);
}

.wa-float:hover .wa-tooltip { opacity: 1; transform: translateX(0); }

/* ==========================================================================
   KEYFRAME ANIMATIONS
   ========================================================================== */
@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

@keyframes blink-down {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(6px); }
}

@keyframes pulse-line {
    0%, 100% { opacity: 0.8; transform: scaleY(1); }
    50%       { opacity: 0.25; transform: scaleY(0.5); }
}

@keyframes slide-loop {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes pop-in {
    from { transform: scale(0); opacity: 0; }
    to   { transform: scale(1); opacity: 1; }
}

/* Logo móvil en hero — oculto en desktop, visible solo en mobile */
.hero-logo-mobile {
    display: none;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 900px) {
    .services-grid  { grid-template-columns: 1fr; }
    .about-grid     { grid-template-columns: 1fr; gap: 48px; }
    .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    :root { --header-h: 62px; }

    /* Ocultar header completo en mobile */
    #header { display: none; }

    /* Logo grande y centrado dentro del hero */
    .hero-logo-mobile {
        display: block;
        width: 200px;
        height: auto;
        margin: 0 auto 32px;
        opacity: 0;
        transform: translateY(16px);
        animation: fadeUp 0.8s var(--ease) 0.1s forwards;
    }

    /* El hero ya no necesita padding-top del header */
    .hero-content { padding-top: 0; }

    .menu-toggle { display: flex; }

    .nav-links {
        position: fixed;
        top: var(--header-h);
        left: 0; right: 0;
        flex-direction: column;
        align-items: stretch;
        padding: 20px 16px 24px;
        background: rgba(255,255,255,0.97);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        border-bottom: 1px solid var(--border);
        gap: 4px;
        transform: translateY(-110%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.38s var(--ease), opacity 0.32s;
        z-index: 999;
        box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    }

    .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: all; }

    .nav-link { padding: 14px 18px; font-size: 0.95rem; text-align: center; }
    .btn-contact { text-align: center; margin-top: 6px; }

    .stats-grid  { grid-template-columns: 1fr; gap: 16px; }
    .form-row    { grid-template-columns: 1fr; }
    .icon-grid   { grid-template-columns: repeat(3, 1fr); }
    .footer-top  { flex-direction: column; align-items: flex-start; }
    .footer-nav  { gap: 20px; }

    .wa-float { bottom: 20px; right: 20px; width: 54px; height: 54px; font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .hero-title     { font-size: 2.8rem; }
    .section-title  { font-size: 1.9rem; }
    .service-card   { padding: 32px 24px; }
    .stats-section, .clients-section { padding: 64px 0; }
    .services-section, .about-section, .contact-section { padding: 72px 0; }
    .btn-submit     { align-self: stretch; justify-content: center; }
    .recaptcha-wrap { transform: scale(0.88); transform-origin: left top; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}