/* RESET & FONTS */
:root {
    --bg-white: #FFFFFF;
    --bg-silver: #F7F7F9;
    --dark-silver: #EAEAEF;
    --text-main: #050505;
    --text-muted: #666666;
    --accent: #0B2B3C;
    --accent-light: #164E63;
    
    --radius-lg: 2rem;
    --radius-md: 1.5rem;
    --radius-sm: 1rem;
    --radius-inner: calc(var(--radius-lg) - 0.5rem);
    
    --transition-fluid: all 0.8s cubic-bezier(0.32, 0.72, 0, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-white);
}

body {
    overflow-x: hidden;
    width: 100%;
    max-w-full;
}

.font-outfit {
    font-family: 'Outfit', sans-serif;
}

/* TYPOGRAPHY */
h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.2;
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    line-height: 1.3;
    font-weight: 600;
    margin-bottom: 1rem;
}

p {
    line-height: 1.6;
}

.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }

/* LAYOUT & UTILS */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.max-w-4xl { max-width: 900px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-10 { margin-top: 2.5rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }

.section-spacing {
    padding-block: clamp(5rem, 10vw, 10rem);
}

.bg-silver { background-color: var(--bg-silver); }
.bg-dark-silver { background-color: var(--dark-silver); }

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-split {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}
@media(min-width: 992px) {
    .flex-split {
        flex-direction: row;
        justify-content: space-between;
    }
    .flex-split > * {
        flex: 1;
    }
}

/* EYEBROW BADGE */
.eyebrow-badge {
    display: inline-block;
    padding: 0.375rem 1rem;
    border-radius: 9999px;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    border: 1px solid rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
    background: rgba(255,255,255,0.5);
}

/* DOUBLE BEZEL ARCHITECTURE (HAPTIC MICRO-AESTHETICS) */
.double-bezel {
    background: rgba(0,0,0,0.02);
    border: 1px solid rgba(0,0,0,0.05);
    padding: 0.5rem;
    border-radius: var(--radius-lg);
}

.dark-card {
    background: var(--text-main);
    color: var(--bg-white);
    border-radius: var(--radius-inner);
    padding: 2.5rem;
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.15);
    height: 100%;
}

.light-card {
    background: var(--bg-silver);
    color: var(--text-main);
    border-radius: var(--radius-inner);
    padding: 2.5rem;
    height: 100%;
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.5);
}

.white-card {
    background: var(--bg-white);
    color: var(--text-main);
    border-radius: var(--radius-inner);
    padding: 2.5rem;
    height: 100%;
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.8);
}

.accent-card {
    background: var(--accent);
    color: var(--bg-white);
    border-radius: var(--radius-inner);
    padding: 2.5rem;
    height: 100%;
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.15);
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 9999px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-fluid);
    cursor: pointer;
    border: none;
    font-family: inherit;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--text-main);
    color: var(--bg-white);
    padding-right: 0.5rem; /* Nested icon spacing */
}

.btn-secondary {
    background-color: var(--bg-white);
    color: var(--text-main);
    border: 1px solid rgba(0,0,0,0.1);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid rgba(0,0,0,0.2);
}

.btn-sm {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
}

.btn-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    transition: var(--transition-fluid);
}

/* Button Hover Physics */
.magnetic-btn:active {
    transform: scale(0.98);
}
.magnetic-btn:hover .btn-icon-wrapper {
    transform: translate(3px, -3px) scale(1.05);
    background: rgba(255,255,255,0.2);
}

/* NAVBAR */
.navbar {
    position: fixed;
    top: 1.5rem;
    left: 0;
    width: 100%;
    z-index: 50;
    display: flex;
    justify-content: center;
    pointer-events: none;
}
.nav-container {
    pointer-events: auto;
    padding: 0.375rem;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
.nav-inner {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: rgba(255,255,255,0.8);
    border-radius: 9999px;
    padding: 0.5rem 0.5rem 0.5rem 1.5rem;
    box-shadow: inset 0 1px 1px rgba(255,255,255,1);
}
.nav-links {
    display: none;
    gap: 1.5rem;
}
.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-fluid);
}
.nav-links a:hover { opacity: 0.6; }
@media(min-width: 768px) {
    .nav-links { display: flex; }
}

/* HERO */
.hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    padding-top: 8rem;
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}
.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
    filter: contrast(1.1) grayscale(0.2);
    transform: scale(1.05); /* for load animation */
}
.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 100%, transparent 0%, var(--bg-white) 80%);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1100px; /* Wide container rule */
}
.hero-title {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}
.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 3rem;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}
.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
}
.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.trust-item i { font-size: 1.25rem; }

/* BENTO GRID */
.bento-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    grid-auto-flow: dense;
}
@media(min-width: 768px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media(min-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
    }
    .col-span-2 { grid-column: span 2; }
    .row-span-2 { grid-row: span 2; }
}

.flex-row-center {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

/* CASES CAROUSEL */
.cases-carousel {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}
@media(min-width: 768px) {
    .cases-carousel {
        grid-template-columns: repeat(3, 1fr);
    }
}
.case-img-placeholder {
    height: 250px;
    background: var(--dark-silver);
    border-radius: calc(var(--radius-inner) - 0.5rem);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}
.case-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

/* TYPES GRID */
.types-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
@media(min-width: 768px) {
    .types-grid { grid-template-columns: repeat(3, 1fr); }
}
.placeholder-img {
    height: 200px;
    border-radius: calc(var(--radius-inner) - 0.5rem);
    margin-bottom: 1.5rem;
}
.type-features {
    list-style: none;
    margin: 1.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    color: var(--text-muted);
}
.type-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.type-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0,0,0,0.05);
}
.type-action .price { font-weight: 600; }

/* PROCESS (Sticky) */
@media(min-width: 992px) {
    .sticky-wrapper {
        position: sticky;
        top: 8rem;
    }
}
.step-card { margin-bottom: 1.5rem; }
.step-num {
    font-size: 3rem;
    color: rgba(0,0,0,0.1);
    font-weight: 700;
    line-height: 1;
    margin-bottom: 1rem;
}

/* PRICING TABLE */
.pricing-inner { padding: 3rem; }
.price-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.price-row:last-child { border-bottom: none; padding-bottom: 0; }
.price-line {
    flex: 1;
    border-bottom: 1px dashed rgba(0,0,0,0.15);
}

/* DOCTOR */
.doctor-photo-placeholder {
    height: 500px;
    border-radius: calc(var(--radius-inner) - 0.5rem);
}
.doctor-stats {
    list-style: none;
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
}
.stat-num {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* FEATURES GRID */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}
@media(min-width: 768px) {
    .features-grid { grid-template-columns: repeat(3, 1fr); }
}
.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

/* FAQ ACCORDION */
.accordion { margin-top: 3rem; }
.accordion-item {
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    background: none;
    border: none;
    font-size: 1.125rem;
    font-weight: 500;
    font-family: inherit;
    color: inherit;
    cursor: pointer;
    text-align: left;
}
.accordion-content {
    height: 0;
    overflow: hidden;
    transition: var(--transition-fluid);
}
.accordion-content p {
    padding-bottom: 1.5rem;
    color: var(--text-muted);
}
.accordion-item.active .accordion-content {
    height: auto;
}
.accordion-item.active .accordion-header i {
    transform: rotate(180deg);
}
.accordion-header i { transition: transform 0.4s; }

/* CTA FORM */
.cta-form {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto;
}
@media(min-width: 768px) {
    .cta-form { grid-template-columns: 1fr 1fr auto; }
}
.form-input {
    width: 100%;
    padding: 1rem 1.5rem;
    border-radius: 9999px;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.05);
    color: white;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
}
.form-input::placeholder { color: rgba(255,255,255,0.4); }
.form-input:focus { border-color: rgba(255,255,255,0.5); }

/* FOOTER */
.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}
@media(min-width: 768px) {
    .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}
.social-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-silver);
    border-radius: 50%;
    color: var(--text-main);
    transition: var(--transition-fluid);
}
.social-icon:hover {
    background: var(--text-main);
    color: var(--bg-white);
}

/* MOBILE CTA */
.mobile-sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--bg-white);
    padding: 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    z-index: 40;
    box-shadow: 0 -10px 40px rgba(0,0,0,0.05);
    transform: translateY(100%);
    transition: var(--transition-fluid);
}
@media(max-width: 767px) {
    .mobile-sticky-cta.visible { transform: translateY(0); }
    body { padding-bottom: 5rem; }
}
@media(min-width: 768px) {
    .mobile-sticky-cta { display: none; }
}
.mobile-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    border-radius: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    font-size: 0.875rem;
}
.mobile-btn.phone {
    background: var(--text-main);
    color: white;
}
.mobile-btn.whatsapp {
    background: #25D366;
    color: white;
}

/* GSAP UTILS */
.fade-up {
    opacity: 0;
    transform: translateY(3rem);
    filter: blur(10px);
}