/* ============================================
   BRAZILIAN AMERICAN LANGUAGE INSTITUTE
   Clean Minimalist — Plum & Amber
   ============================================ */

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

:root {
    --plum-950: #1a0f16;
    --plum-900: #2d1a26;
    --plum-800: #3d2234;
    --plum-700: #5a3048;
    --plum-600: #6B3A5E;
    --plum-500: #8B4F72;
    --plum-400: #A86B8E;
    --plum-300: #C9A0B8;
    --plum-200: #E8D4DE;
    --plum-100: #F5EAF0;
    --plum-50:  #FBF6F8;
    
    --amber-600: #B8860B;
    --amber-500: #D4A04A;
    --amber-400: #E2B96A;
    --amber-300: #EDD5A0;
    --amber-200: #F5E8CC;
    --amber-100: #FBF4E8;
    
    --white: #FFFFFF;
    --off-white: #FAFAFA;
    --gray-50: #F8F7F9;
    --gray-100: #F2F1F4;
    --gray-200: #E5E3E9;
    --gray-300: #D1CED8;
    --gray-400: #A8A4B2;
    --gray-500: #7A7686;
    --gray-600: #5C5868;
    --gray-700: #3D3A47;
    --gray-800: #2A2733;
    --gray-900: #1A1820;
    
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-weight: 300;
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul { list-style: none; }

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- SECTION EYEBROW ---------- */
.section-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--amber-600);
    margin-bottom: 16px;
}

/* ---------- BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 14px 32px;
    border: 1px solid transparent;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.35s var(--ease-out);
    white-space: nowrap;
}

.btn--primary {
    background: var(--plum-600);
    color: var(--white);
    border-color: var(--plum-600);
}

.btn--primary:hover {
    background: var(--plum-700);
    border-color: var(--plum-700);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(107, 58, 94, 0.3);
}

.btn--outline {
    background: transparent;
    color: var(--plum-600);
    border-color: var(--plum-600);
}

.btn--outline:hover {
    background: var(--plum-600);
    color: var(--white);
}

.btn--ghost {
    background: rgba(255,255,255,0.1);
    color: var(--white);
    border-color: rgba(255,255,255,0.35);
    backdrop-filter: blur(4px);
}

.btn--ghost:hover {
    background: var(--white);
    color: var(--plum-800);
    border-color: var(--white);
}

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

/* ---------- HEADER ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    transition: box-shadow 0.3s var(--ease-out);
}

.site-header.scrolled {
    box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-mark {
    font-family: var(--font-serif);
    font-size: 1.625rem;
    font-weight: 400;
    color: var(--plum-600);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1.5px solid var(--plum-600);
    border-radius: 50%;
    flex-shrink: 0;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 0.9375rem;
    font-weight: 400;
    color: var(--gray-800);
    line-height: 1.25;
    letter-spacing: 0.01em;
}

.nav ul {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav a {
    font-size: 0.8125rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--gray-600);
    transition: color 0.25s;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--plum-600);
    transition: width 0.3s var(--ease-out);
}

.nav a:hover {
    color: var(--plum-600);
}

.nav a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--gray-700);
    transition: all 0.3s var(--ease-out);
    transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 5px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -5px);
}

/* ---------- HERO ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--plum-950);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 15, 22, 0.92) 0%,
        rgba(45, 26, 38, 0.88) 40%,
        rgba(107, 58, 94, 0.75) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 860px;
    padding: 120px 24px 80px;
    text-align: center;
}

.hero-line {
    width: 48px;
    height: 1px;
    background: var(--amber-500);
    margin: 0 auto 32px;
}

.hero-eyebrow {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--amber-400);
    margin-bottom: 28px;
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4.5vw, 3.5rem);
    font-weight: 300;
    line-height: 1.2;
    color: var(--white);
    margin-bottom: 28px;
    letter-spacing: -0.01em;
}

.hero p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.72);
    max-width: 600px;
    margin: 0 auto 40px;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

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

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

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 2px;
}

.about-text .section-eyebrow {
    margin-bottom: 12px;
}

.about-text h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 28px;
    letter-spacing: -0.01em;
}

.about-text .lead {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--gray-600);
    margin-bottom: 20px;
    font-weight: 300;
}

.about-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
    padding-top: 40px;
    border-top: 1px solid var(--gray-200);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stat-number {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 500;
    color: var(--plum-600);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--gray-500);
    letter-spacing: 0.02em;
}

/* ---------- PROGRAMS ---------- */
.programs {
    padding: 120px 0;
    background: var(--gray-50);
}

.programs-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 72px;
}

.programs-header h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--gray-900);
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.program-card {
    background: var(--white);
    border-radius: 2px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all 0.4s var(--ease-out);
}

.program-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(107, 58, 94, 0.1);
    border-color: var(--plum-200);
}

.program-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.program-card-content {
    padding: 32px;
}

.program-number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--plum-200);
    line-height: 1;
    margin-bottom: 16px;
}

.program-card h3 {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 500;
    color: var(--gray-900);
    margin-bottom: 12px;
    line-height: 1.3;
}

.program-card p {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--gray-600);
    font-weight: 300;
}

/* ---------- APPROACH ---------- */
.approach {
    padding: 120px 0;
    background: var(--white);
}

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

.approach-text .section-eyebrow {
    margin-bottom: 12px;
}

.approach-text h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 28px;
    letter-spacing: -0.01em;
}

.approach-text .lead {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--gray-600);
    margin-bottom: 40px;
    font-weight: 300;
}

.approach-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.approach-list li {
    display: grid;
    grid-template-columns: 24px 1fr;
    gap: 20px;
    align-items: start;
}

.approach-line {
    display: block;
    width: 24px;
    height: 1px;
    background: var(--amber-500);
    margin-top: 12px;
}

.approach-list strong {
    display: block;
    font-weight: 500;
    color: var(--gray-800);
    font-size: 1rem;
    margin-bottom: 4px;
}

.approach-list span {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--gray-500);
    font-weight: 300;
}

.approach-image img {
    width: 100%;
    height: 560px;
    object-fit: cover;
    border-radius: 2px;
}

/* ---------- TESTIMONIALS ---------- */
.testimonials {
    padding: 120px 0;
    background: var(--plum-900);
}

.testimonials-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 72px;
}

.testimonials-header .section-eyebrow {
    color: var(--amber-400);
}

.testimonials-header h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--white);
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 2px;
    padding: 36px;
    transition: all 0.3s var(--ease-out);
}

.testimonial:hover {
    background: rgba(255,255,255,0.07);
    border-color: rgba(212, 160, 74, 0.3);
}

.testimonial p {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-style: italic;
    font-weight: 300;
    color: rgba(255,255,255,0.85);
    line-height: 1.75;
    margin-bottom: 24px;
}

.testimonial footer {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-style: normal;
    color: var(--amber-400);
    letter-spacing: 0.04em;
}

/* ---------- LOCATION ---------- */
.location {
    padding: 120px 0;
    background: var(--white);
}

.location-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.location-info .section-eyebrow {
    margin-bottom: 12px;
}

.location-info h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 32px;
    letter-spacing: -0.01em;
}

.location-info address {
    font-style: normal;
    margin-bottom: 32px;
}

.location-info address p {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--gray-600);
}

.location-info address p:first-child {
    font-weight: 500;
    color: var(--gray-800);
    font-size: 1.0625rem;
}

.phone-link {
    color: var(--plum-600);
    font-weight: 400;
    border-bottom: 1px solid var(--plum-200);
    padding-bottom: 2px;
    transition: all 0.25s;
}

.phone-link:hover {
    color: var(--plum-700);
    border-color: var(--plum-600);
}

.location-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-200);
}

.detail {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9375rem;
    color: var(--gray-600);
}

.detail svg {
    color: var(--amber-500);
    flex-shrink: 0;
}

.location-map {
    height: 480px;
    border-radius: 2px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.location-map iframe {
    width: 100%;
    height: 100%;
}

/* ---------- CONTACT ---------- */
.contact {
    padding: 120px 0;
    background: var(--gray-50);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-text .section-eyebrow {
    margin-bottom: 12px;
}

.contact-text h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 28px;
    letter-spacing: -0.01em;
}

.contact-text .lead {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--gray-600);
    margin-bottom: 32px;
    font-weight: 300;
}

.phone-link-large {
    display: inline-block;
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--plum-600);
    border-bottom: 1px solid var(--plum-300);
    padding-bottom: 4px;
    transition: all 0.25s;
}

.phone-link-large:hover {
    color: var(--plum-700);
    border-color: var(--plum-600);
}

.contact-form-wrap {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 2px;
    padding: 40px;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 300;
    color: var(--gray-800);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 2px;
    padding: 12px 14px;
    transition: all 0.25s;
    outline: none;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--plum-400);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(107, 58, 94, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-success {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    background: var(--plum-100);
    border: 1px solid var(--plum-200);
    border-radius: 2px;
    font-size: 0.9375rem;
    color: var(--plum-700);
    margin-top: 4px;
}

.form-success svg {
    color: var(--plum-600);
    flex-shrink: 0;
}

/* ---------- FOOTER ---------- */
.site-footer {
    background: var(--plum-950);
    padding: 72px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 64px;
    padding-bottom: 56px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-brand .logo-mark {
    width: 48px;
    height: 48px;
    font-size: 1.75rem;
    border-color: var(--amber-500);
    color: var(--amber-500);
}

.footer-brand .logo-text {
    font-size: 1rem;
    color: rgba(255,255,255,0.85);
}

.footer-brand p {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.45);
    line-height: 1.7;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--amber-400);
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.55);
    transition: color 0.25s;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact p {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.55);
    line-height: 1.8;
    margin-bottom: 8px;
}

.footer-contact .phone-link {
    color: var(--amber-400);
    border-color: rgba(212,160,74,0.3);
}

.footer-contact .phone-link:hover {
    color: var(--amber-300);
    border-color: var(--amber-400);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.3);
}

/* ---------- MOBILE NAV OVERLAY ---------- */
.nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(26, 15, 22, 0.6);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease-out);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.nav-mobile {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    z-index: 1001;
    background: var(--white);
    padding: 96px 40px 40px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease-out);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-mobile.active {
    transform: translateX(0);
}

.nav-mobile a {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--gray-800);
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-200);
    transition: color 0.25s;
}

.nav-mobile a:hover {
    color: var(--plum-600);
}

/* ---------- SCROLL REVEAL (below fold only, progressive enhancement) ---------- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
    .about-grid,
    .approach-layout,
    .location-layout,
    .contact-layout {
        gap: 48px;
    }
    
    .footer-grid {
        gap: 40px;
    }
}

@media (max-width: 900px) {
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .about-grid,
    .approach-layout {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .approach-image {
        order: -1;
    }
    
    .approach-image img,
    .about-image img {
        height: 360px;
    }
}

@media (max-width: 768px) {
    .nav { display: none; }
    .menu-toggle { display: flex; }
    
    .header-inner { height: 64px; }
    
    .hero-content { padding: 100px 20px 60px; }
    
    .hero h1 {
        font-size: clamp(1.625rem, 6vw, 2.25rem);
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .about,
    .programs,
    .approach,
    .testimonials,
    .location,
    .contact {
        padding: 80px 0;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .location-layout,
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .location-map {
        height: 320px;
    }
    
    .contact-form-wrap {
        padding: 28px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        padding: 20px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero h1 {
        font-size: 1.5rem;
    }
    
    .contact-form-wrap {
        padding: 20px;
    }
}