/* ============================================================
   STHERLINE BEAUTY HOME — Premium Cinematic Stylesheet
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
    --purple: #5B2EFF;
    --purple-dark: #4018cc;
    --purple-glow: rgba(91, 46, 255, 0.5);
    --purple-soft: rgba(91, 46, 255, 0.15);
    --green: #00A86B;
    --green-dark: #008a57;
    --green-glow: rgba(0, 168, 107, 0.5);
    --green-soft: rgba(0, 168, 107, 0.15);
    --black: #000000;
    --black-soft: #0a0a0a;
    --black-card: #0d0d0d;
    --black-card-hover: #121212;
    --white: #ffffff;
    --white-soft: rgba(255, 255, 255, 0.85);
    --white-muted: rgba(255, 255, 255, 0.55);
    --font: 'Cinzel', serif;
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: 0.25s ease;
    --glow-purple: 0 0 30px rgba(91, 46, 255, 0.4), 0 0 60px rgba(91, 46, 255, 0.15);
    --glow-green: 0 0 30px rgba(0, 168, 107, 0.4), 0 0 60px rgba(0, 168, 107, 0.15);
}

/* ---- 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);
    background: var(--black);
    color: var(--white);
    overflow-x: hidden;
    line-height: 1.6;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- Particle Canvas ---- */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 18px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 10px 0;
    box-shadow: 0 2px 40px rgba(91, 46, 255, 0.12);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1001;
}

.nav-logo-img {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--purple);
    box-shadow: 0 0 15px var(--purple-glow);
}

.nav-brand {
    font-family: var(--font);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--white);
    text-shadow: 0 0 20px var(--purple-glow);
}

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

.nav-link {
    font-family: var(--font);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--white-soft);
    position: relative;
    padding: 4px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--purple), var(--green));
    transition: var(--transition);
    border-radius: 2px;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--white);
    text-shadow: 0 0 12px var(--purple-glow);
}

.nav-cta {
    font-family: var(--font);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 10px 24px;
    border: 1px solid var(--purple);
    color: var(--white);
    border-radius: 4px;
    transition: var(--transition);
    background: transparent;
}

.nav-cta:hover {
    background: var(--purple);
    box-shadow: var(--glow-purple);
}

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

.hamburger-line {
    width: 28px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    z-index: 1;
}

.hero-video-wrap {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.6) 0%,
        rgba(0, 0, 0, 0.4) 40%,
        rgba(0, 0, 0, 0.7) 80%,
        rgba(0, 0, 0, 0.95) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
    max-width: 900px;
}

.hero-title {
    font-family: var(--font);
    font-size: clamp(2rem, 6vw, 4.5rem);
    font-weight: 800;
    letter-spacing: 8px;
    line-height: 1.2;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.glow-text {
    background: linear-gradient(135deg, var(--white) 0%, var(--purple) 50%, var(--green) 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 6s ease infinite;
    text-shadow: none;
    filter: drop-shadow(0 0 30px var(--purple-glow));
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-family: var(--font);
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    font-weight: 500;
    letter-spacing: 4px;
    color: var(--white-soft);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.hero-tagline {
    font-family: var(--font);
    font-size: clamp(0.85rem, 2vw, 1.1rem);
    font-weight: 400;
    letter-spacing: 3px;
    color: var(--white-muted);
    margin-bottom: 40px;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--purple);
    border-bottom: 2px solid var(--purple);
    transform: rotate(45deg);
    animation: scrollBounce 2s infinite;
    opacity: 0.6;
}

@keyframes scrollBounce {
    0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
    40% { transform: rotate(45deg) translateY(10px); }
    60% { transform: rotate(45deg) translateY(5px); }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font);
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: 0.6s;
}

.btn:hover::before {
    left: 100%;
}

.btn-hero {
    font-size: 0.85rem;
    padding: 18px 40px;
    background: var(--purple);
    color: var(--white);
    border-radius: 6px;
    box-shadow: var(--glow-purple);
}

.btn-hero:hover {
    background: var(--green);
    box-shadow: var(--glow-green);
    transform: translateY(-2px);
}

.btn-card {
    font-size: 0.65rem;
    padding: 12px 24px;
    background: transparent;
    color: var(--purple);
    border: 1px solid var(--purple);
    border-radius: 4px;
    margin-top: auto;
}

.btn-card:hover {
    background: var(--purple);
    color: var(--white);
    box-shadow: var(--glow-purple);
    transform: translateY(-1px);
}

.btn-card-green {
    color: var(--green);
    border-color: var(--green);
}

.btn-card-green:hover {
    background: var(--green);
    color: var(--white);
    box-shadow: var(--glow-green);
}

.btn-about {
    font-size: 0.75rem;
    padding: 16px 32px;
    background: var(--purple);
    color: var(--white);
    border-radius: 6px;
    box-shadow: var(--glow-purple);
    margin-top: 28px;
}

.btn-about:hover {
    background: var(--green);
    box-shadow: var(--glow-green);
    transform: translateY(-2px);
}

.btn-whatsapp-large {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    padding: 22px 50px;
    background: linear-gradient(135deg, var(--purple), var(--green));
    color: var(--white);
    border-radius: 8px;
    box-shadow: 0 0 40px var(--purple-glow), 0 0 80px var(--green-glow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    animation: glowPulse 3s ease-in-out infinite;
}

.btn-whatsapp-large::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.6s;
}

.btn-whatsapp-large:hover::before {
    left: 100%;
}

.btn-whatsapp-large:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 60px var(--purple-glow), 0 0 120px var(--green-glow);
}

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 40px var(--purple-glow), 0 0 80px rgba(0, 168, 107, 0.1); }
    50% { box-shadow: 0 0 60px var(--purple-glow), 0 0 100px var(--green-glow); }
}

.whatsapp-icon, .whatsapp-icon-large {
    flex-shrink: 0;
}

/* ============================================================
   SECTION COMMON
   ============================================================ */
.section-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--purple-glow), var(--green-glow), transparent);
    margin-bottom: 0;
}

.services,
.gallery,
.about,
.contact {
    position: relative;
    z-index: 1;
    padding: 100px 0;
    background: var(--black);
}

.section-title {
    font-family: var(--font);
    font-size: clamp(1.5rem, 4vw, 2.8rem);
    font-weight: 700;
    letter-spacing: 6px;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 12px;
}

.section-subtitle {
    font-family: var(--font);
    font-size: clamp(0.8rem, 1.5vw, 1rem);
    font-weight: 400;
    letter-spacing: 2px;
    color: var(--white-muted);
    text-align: center;
    margin-bottom: 60px;
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services-category {
    font-family: var(--font);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--white-soft);
    text-align: center;
    margin-bottom: 36px;
    margin-top: 60px;
}

.services-category:first-of-type {
    margin-top: 0;
}

.category-icon {
    color: var(--purple);
    margin-right: 8px;
    text-shadow: 0 0 10px var(--purple-glow);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.services-grid-teeth {
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.service-card {
    position: relative;
    background: var(--black-card);
    border: 1px solid rgba(91, 46, 255, 0.12);
    border-radius: 12px;
    padding: 36px 28px;
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(91, 46, 255, 0.35);
    background: var(--black-card-hover);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px var(--purple-glow);
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--purple), transparent);
    opacity: 0;
    transition: var(--transition);
}

.card-glow-green {
    background: linear-gradient(90deg, var(--green), transparent);
}

.service-card:hover .card-glow {
    opacity: 1;
}

.card-content {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.featured-badge {
    display: inline-block;
    font-family: var(--font);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    padding: 4px 14px;
    background: linear-gradient(135deg, var(--green-soft), var(--purple-soft));
    border: 1px solid var(--green);
    color: var(--green);
    border-radius: 20px;
    margin-bottom: 16px;
    width: fit-content;
}

.service-name {
    font-family: var(--font);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--white);
    margin-bottom: 8px;
}

.service-detail {
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 1px;
    color: var(--green);
    margin-bottom: 8px;
}

.service-price {
    font-family: var(--font);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--purple);
    letter-spacing: 1px;
    margin-bottom: 12px;
    text-shadow: 0 0 15px var(--purple-glow);
}

.service-price-green {
    color: var(--green);
    text-shadow: 0 0 15px var(--green-glow);
}

.service-desc {
    font-family: var(--font);
    font-size: 0.78rem;
    font-weight: 400;
    line-height: 1.7;
    color: var(--white-muted);
    letter-spacing: 0.5px;
    margin-bottom: 24px;
}

.service-card-featured {
    border-color: rgba(0, 168, 107, 0.25);
}

.service-card-featured:hover {
    border-color: rgba(0, 168, 107, 0.5);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px var(--green-glow);
}

/* ============================================================
   GALLERY SECTION
   ============================================================ */
.gallery {
    background: var(--black-soft);
}

.gallery-masonry {
    columns: 3;
    column-gap: 16px;
}

.gallery-item {
    break-inside: avoid;
    margin-bottom: 16px;
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    background: var(--black-card);
    border: 1px solid rgba(91, 46, 255, 0.08);
    transition: var(--transition);
}

.gallery-item:hover {
    border-color: rgba(91, 46, 255, 0.3);
    box-shadow: 0 0 25px var(--purple-glow);
}

.gallery-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-item:hover .gallery-img {
    transform: scale(1.08);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 16px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
    font-family: var(--font);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--white-soft);
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

/* Video frames */
.video-frame {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
}

.gallery-video {
    width: 100%;
    height: auto;
    display: block;
    cursor: pointer;
}

.video-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    cursor: pointer;
    transition: var(--transition);
}

.video-play-overlay:hover {
    background: rgba(0, 0, 0, 0.2);
}

.play-btn {
    width: 60px;
    height: 60px;
    background: var(--purple);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--white);
    box-shadow: var(--glow-purple);
    transition: var(--transition);
}

.video-play-overlay:hover .play-btn {
    transform: scale(1.1);
    box-shadow: 0 0 40px var(--purple-glow);
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 32px;
    font-size: 2.5rem;
    color: var(--white);
    background: none;
    border: none;
    cursor: pointer;
    z-index: 10;
    font-family: var(--font);
    transition: var(--transition);
}

.lightbox-close:hover {
    color: var(--purple);
    transform: rotate(90deg);
}

.lightbox-img {
    max-width: 90%;
    max-height: 80vh;
    border-radius: 8px;
    box-shadow: 0 0 60px var(--purple-glow);
    transform: scale(0.85);
    transition: var(--transition);
}

.lightbox.active .lightbox-img {
    transform: scale(1);
}

.lightbox-caption {
    font-family: var(--font);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--white-muted);
    margin-top: 20px;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(91, 46, 255, 0.2);
    border: 1px solid rgba(91, 46, 255, 0.4);
    color: var(--white);
    font-family: var(--font);
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-nav:hover {
    background: var(--purple);
    border-color: var(--purple);
    box-shadow: 0 0 30px var(--purple-glow);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: 24px;
}

.lightbox-next {
    right: 24px;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about {
    background: var(--black);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image-wrap {
    position: relative;
    display: flex;
    justify-content: center;
}

.about-image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 85%;
    height: 85%;
    border-radius: 50%;
    background: radial-gradient(circle, var(--purple-glow), transparent 70%);
    filter: blur(40px);
    z-index: 0;
    animation: glowPulse 4s ease-in-out infinite;
}

.about-image {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 400px;
    border-radius: 16px;
    object-fit: cover;
    border: 2px solid rgba(91, 46, 255, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.about-text {
    padding: 20px 0;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.about-name {
    font-family: var(--font);
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--white);
    margin-bottom: 4px;
}

.about-role {
    font-family: var(--font);
    font-size: 0.78rem;
    font-weight: 400;
    letter-spacing: 2px;
    color: var(--purple);
    text-transform: uppercase;
    margin-bottom: 24px;
}

.about-description {
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 400;
    line-height: 2;
    color: var(--white-muted);
    letter-spacing: 0.5px;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact {
    background: var(--black-soft);
    text-align: center;
}

.contact-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.contact-info {
    display: flex;
    justify-content: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--purple-soft);
    color: var(--purple);
    flex-shrink: 0;
}

.contact-label {
    font-family: var(--font);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--white-muted);
    margin-bottom: 4px;
}

.contact-value {
    font-family: var(--font);
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--white);
}

.contact-value:hover {
    color: var(--purple);
    text-shadow: 0 0 15px var(--purple-glow);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    position: relative;
    z-index: 1;
    padding: 50px 0;
    background: var(--black);
    border-top: 1px solid rgba(91, 46, 255, 0.1);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.footer-logo {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--purple);
    box-shadow: 0 0 20px var(--purple-glow);
    margin-bottom: 8px;
}

.footer-brand {
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--white);
}

.footer-tagline {
    font-family: var(--font);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 2px;
    color: var(--white-muted);
}

.footer-divider {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, var(--purple), var(--green));
    margin: 16px 0;
}

.footer-copy {
    font-family: var(--font);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 1px;
    color: var(--white-muted);
}

/* ============================================================
   FLOATING WHATSAPP
   ============================================================ */
.floating-whatsapp {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    z-index: 999;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    animation: floatBounce 3s ease-in-out infinite;
}

.floating-whatsapp:hover {
    transform: scale(1.12);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

@keyframes floatBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .about-text .section-title {
        text-align: center;
    }

    .about-image {
        max-width: 320px;
    }

    .gallery-masonry {
        columns: 2;
    }

    .services-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: rgba(0, 0, 0, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 30px;
        transition: var(--transition);
        border-left: 1px solid rgba(91, 46, 255, 0.15);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: 0.85rem;
        letter-spacing: 3px;
    }

    .hero-title {
        letter-spacing: 4px;
    }

    .btn-hero {
        font-size: 0.72rem;
        padding: 16px 28px;
        letter-spacing: 2px;
    }

    .gallery-masonry {
        columns: 2;
        column-gap: 10px;
    }

    .gallery-item {
        margin-bottom: 10px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .service-card {
        padding: 28px 22px;
    }

    .section-title {
        letter-spacing: 3px;
    }

    .section-subtitle {
        margin-bottom: 40px;
    }

    .services,
    .gallery,
    .about,
    .contact {
        padding: 70px 0;
    }

    .btn-whatsapp-large {
        font-size: 0.78rem;
        padding: 18px 32px;
        letter-spacing: 2px;
    }

    .contact-value {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .gallery-masonry {
        columns: 1;
    }

    .nav-brand {
        font-size: 0.95rem;
        letter-spacing: 2px;
    }

    .nav-logo-img {
        width: 36px;
        height: 36px;
    }

    .hero-title {
        letter-spacing: 3px;
    }

    .hero-subtitle {
        letter-spacing: 2px;
    }

    .btn-hero {
        font-size: 0.65rem;
        padding: 14px 24px;
    }

    .btn-whatsapp-large {
        font-size: 0.7rem;
        padding: 16px 24px;
        letter-spacing: 1px;
    }

    .floating-whatsapp {
        width: 52px;
        height: 52px;
        bottom: 20px;
        right: 20px;
    }
}

/* ============================================================
   UTILITY ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Gradient accent behind sections */
.services::before,
.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--purple-soft), transparent 70%);
    filter: blur(100px);
    pointer-events: none;
    opacity: 0.4;
    z-index: 0;
}

.gallery::before {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--green-soft), transparent 70%);
    filter: blur(100px);
    pointer-events: none;
    opacity: 0.3;
    z-index: 0;
}

.services .container,
.gallery .container,
.about .container,
.contact .container {
    position: relative;
    z-index: 1;
}