/* ============================================================
   CSS CUSTOM PROPERTIES – LIGHT THEME (default)
   ============================================================ */
:root {
    --color-primary: #5B3A29;
    --color-primary-light: #7A4F38;
    --color-accent: #C9833D;
    --color-accent-dark: #8A461A;
    --color-bg-start: #FFF6E5;
    --color-bg-mid: #F7D9A7;
    --color-bg-end: #F4C27A;
    --color-text: #2C1E14;
    --color-white: #FFFFFF;
    --color-shadow: rgba(0, 0, 0, 0.08);
    --color-shadow-dark: rgba(0, 0, 0, 0.25);
    --nav-bg: rgba(255, 255, 255, 0.18);
    --nav-scrolled-bg: rgba(255, 255, 255, 0.82);
    --features-bg: rgba(255, 255, 255, 0.50);
    --quiz-bg: linear-gradient(135deg, rgba(91, 58, 41, 0.04), rgba(201, 131, 61, 0.08));
    --card-bg: var(--color-white);
    --card-border: rgba(255, 255, 255, 0.40);
    --text-muted: #555;
    --radius-card: 30px;
    --radius-btn: 999px;
    --transition-btn: 0.3s ease;
    --transition-smooth: 0.7s ease;
    --font-family: 'Poppins', sans-serif;
    --nav-height: 80px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ============================================================
   DARK THEME OVERRIDES
   ============================================================ */
[data-theme="dark"] {
    --color-primary: #b68b6e;
    --color-primary-light: #d4a98a;
    --color-accent: #e09e5b;
    --color-accent-dark: #b86b2c;
    --color-bg-start: #2c1e14;
    --color-bg-mid: #3b2a1e;
    --color-bg-end: #4a3528;
    --color-text: #f0e6d2;
    --color-white: #2a2a2a;
    --color-shadow: rgba(0, 0, 0, 0.3);
    --color-shadow-dark: rgba(0, 0, 0, 0.5);
    --nav-bg: rgba(20, 20, 20, 0.5);
    --nav-scrolled-bg: rgba(30, 30, 30, 0.9);
    --features-bg: rgba(0, 0, 0, 0.3);
    --quiz-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.05));
    --card-bg: var(--color-white);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-muted: #c0b5a3;
}

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

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

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--color-bg-start), var(--color-bg-mid), var(--color-bg-end));
    color: var(--color-text);
    min-height: 100vh;
    overflow-x: hidden;
    padding-top: var(--nav-height);
    transition: background 0.3s ease, color 0.3s ease;
}

[hidden] { display: none !important; }

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ============================================================
   SKIP LINK
   ============================================================ */
.skip-link {
    position: fixed;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: #fff;
    padding: 12px 28px;
    border-radius: 0 0 12px 12px;
    font-weight: 600;
    z-index: 999;
    text-decoration: none;
    transition: top 0.3s ease;
}
.skip-link:focus { top: 0; }

/* ============================================================
   NAVIGATION
   ============================================================ */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 8%;
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 4px 15px var(--color-shadow);
    z-index: 100;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

nav.scrolled {
    background: var(--nav-scrolled-bg);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.10);
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.3px;
}
.logo span { font-size: 1.9rem; }

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
    align-items: center;
}
.nav-links a {
    text-decoration: none;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1rem;
    position: relative;
    padding: 4px 0;
    transition: color var(--transition-btn);
}
.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2.5px;
    background: var(--color-accent);
    border-radius: 4px;
    transition: width var(--transition-smooth);
}
.nav-links a:hover::after,
.nav-links a:focus-visible::after { width: 100%; }
.nav-links a:hover { color: var(--color-accent-dark); }

/* ============================================================
   THEME TOGGLE
   ============================================================ */
.theme-toggle {
    background: transparent;
    border: 2px solid var(--color-primary);
    border-radius: 50px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-primary);
    transition: all var(--transition-btn);
    background-color: var(--nav-bg);
}
.theme-toggle:hover { background: var(--color-primary); color: #fff; }
[data-theme="light"] .theme-toggle .icon-dark { display: none; }
[data-theme="light"] .theme-toggle .icon-light { display: inline; }
[data-theme="dark"] .theme-toggle .icon-light { display: none; }
[data-theme="dark"] .theme-toggle .icon-dark { display: inline; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    min-height: calc(100vh - var(--nav-height));
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 8% 60px;
}

.hero-box {
    position: relative;
    width: 920px;
    max-width: 100%;
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
    transition: box-shadow var(--transition-smooth);
}
.hero-box:hover { box-shadow: 0 30px 70px rgba(0, 0, 0, 0.22); }

.hero-box img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    display: block;
    background: #e8d5b5;
    transition: transform var(--transition-smooth);
}
.hero-box:hover img { transform: scale(1.03); }

.hero-content {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.40);
    background-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.10) 0%, rgba(0, 0, 0, 0.50) 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 40px 32px;
    backdrop-filter: brightness(0.92);
    -webkit-backdrop-filter: brightness(0.92);
    transition: backdrop-filter var(--transition-smooth);
}
.hero-box:hover .hero-content {
    backdrop-filter: brightness(0.85);
    -webkit-backdrop-filter: brightness(0.85);
}

.hero-content h1 {
    font-size: clamp(2.6rem, 7vw, 4.4rem);
    font-weight: 700;
    margin-bottom: 4px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.55);
    letter-spacing: -0.5px;
    line-height: 1.1;
}
.hero-content h2 {
    font-size: clamp(1.1rem, 2.5vw, 1.8rem);
    font-weight: 400;
    margin-bottom: 20px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.40);
    letter-spacing: 0.3px;
}
.hero-content p {
    max-width: 600px;
    line-height: 1.8;
    margin-bottom: 36px;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.3vw, 1.1rem);
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.buttons {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    padding: 16px 38px;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.4px;
    border: 2px solid transparent;
    cursor: pointer;
    min-height: 60px;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-btn), box-shadow var(--transition-btn), background var(--transition-btn), color var(--transition-btn), border-color var(--transition-btn);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 50%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transform: skewX(-25deg);
    transition: left 0.6s ease;
    pointer-events: none;
}
.btn:hover::before { left: 180%; }

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    border-color: transparent;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.20);
}
.btn-primary:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 16px 40px rgba(201, 131, 61, 0.35);
    background: linear-gradient(135deg, #d48f4a, #9a4f1f);
}
.btn-primary:active { transform: scale(0.97); transition-duration: 0.08s; }

.btn-secondary {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.btn-secondary:hover {
    transform: translateY(-4px) scale(1.03);
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
    box-shadow: 0 16px 40px rgba(255, 255, 255, 0.12);
}
.btn-secondary:active { transform: scale(0.97); transition-duration: 0.08s; }

/* ============================================================
   FEATURES SECTION
   ============================================================ */
.features {
    padding: 80px 8% 100px;
    background: var(--features-bg);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-top: 1px solid rgba(255, 255, 255, 0.30);
    border-bottom: 1px solid rgba(255, 255, 255, 0.30);
}

.features h2 {
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 50px;
    letter-spacing: -0.5px;
}
.features h2 span { color: var(--color-accent-dark); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--card-bg);
    padding: 36px 28px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 10px 30px var(--color-shadow);
    border: 1px solid var(--card-border);
    opacity: 0;
    transform: translateX(0);
    transition: opacity var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
    will-change: transform, opacity;
}
.feature-card.left  { transform: translateX(-80px); }
.feature-card.right { transform: translateX(80px); }
.feature-card.visible { opacity: 1; transform: translateX(0); }
.feature-card:nth-child(1) { transition-delay: 0.0s; }
.feature-card:nth-child(2) { transition-delay: 0.1s; }
.feature-card:nth-child(3) { transition-delay: 0.2s; }
.feature-card:nth-child(4) { transition-delay: 0.3s; }

.feature-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 25px 50px rgba(91, 58, 41, 0.12);
    border-color: var(--color-accent);
}
.feature-card .icon {
    font-size: 2.8rem;
    margin-bottom: 16px;
    display: inline-block;
    transition: transform var(--transition-btn);
}
.feature-card:hover .icon { transform: scale(1.12) rotate(-3deg); }
.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 10px;
}
.feature-card p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-muted);
    font-weight: 300;
}

/* ============================================================
   QUIZ SECTION
   ============================================================ */
.quiz {
    padding: 80px 8% 100px;
    background: var(--quiz-bg);
}

.quiz-inner {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.quiz h2 {
    font-size: clamp(1.9rem, 3.8vw, 2.8rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.quiz > .quiz-inner > p {
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.7;
}

/* ---- Quiz card ---- */
.quiz-card {
    background: var(--card-bg);
    border-radius: var(--radius-card);
    padding: 40px 36px 44px;
    box-shadow: 0 20px 50px var(--color-shadow);
    border: 1px solid var(--card-border);
    text-align: left;
    transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
    animation: fadeInUp 0.4s ease;
}

.quiz-progress-wrap {
    margin-bottom: 28px;
}

.quiz-progress-text {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent-dark);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.quiz-progress {
    width: 100%;
    height: 8px;
    background: rgba(91, 58, 41, 0.10);
    border-radius: 999px;
    overflow: hidden;
}

[data-theme="dark"] .quiz-progress {
    background: rgba(255, 255, 255, 0.10);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
    border-radius: 999px;
    transition: width 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}



.quiz-question {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 24px;
    line-height: 1.4;
    letter-spacing: -0.2px;
}

.quiz-options {
    display: grid;
    gap: 12px;
}

.quiz-option {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 16px 20px;
    border-radius: 16px;
    border: 2px solid rgba(91, 58, 41, 0.12);
    background: transparent;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    text-align: left;
    cursor: pointer;
    transition: transform var(--transition-btn), border-color var(--transition-btn), background var(--transition-btn), box-shadow var(--transition-btn);
}

[data-theme="dark"] .quiz-option {
    border-color: rgba(255, 255, 255, 0.10);
}

.quiz-option .bullet {
    flex: 0 0 28px;
    height: 28px;
    line-height: 28px;
    text-align: center;
    border-radius: 50%;
    background: rgba(201, 131, 61, 0.15);
    color: var(--color-accent-dark);
    font-weight: 700;
    font-size: 0.85rem;
    transition: background var(--transition-btn), color var(--transition-btn), transform var(--transition-btn);
}

.quiz-option:hover {
    border-color: var(--color-accent);
    background: rgba(201, 131, 61, 0.06);
    transform: translateX(4px);
    box-shadow: 0 8px 20px rgba(201, 131, 61, 0.12);
}

.quiz-option:hover .bullet {
    background: var(--color-accent);
    color: #fff;
    transform: scale(1.05);
}

.quiz-option:active {
    transform: translateX(4px) scale(0.99);
}

/* ---- Result card ---- */
.quiz-result {
    background: var(--card-bg);
    border-radius: var(--radius-card);
    padding: 48px 40px 44px;
    box-shadow: 0 20px 50px var(--color-shadow);
    border: 2px solid var(--color-accent);
    text-align: center;
    animation: fadeInUp 0.5s ease;
}

.result-icon {
    font-size: 3.4rem;
    width: 100px;
    height: 100px;
    line-height: 100px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(201, 131, 61, 0.15), rgba(138, 70, 26, 0.10));
    box-shadow: 0 8px 24px rgba(201, 131, 61, 0.20);
    animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.result-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--color-accent-dark);
    margin-bottom: 6px;
}

.quiz-result h3 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}

.quiz-result p {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto 24px;
    font-weight: 300;
}

.result-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 30px;
}

.result-tag {
    display: inline-block;
    padding: 7px 16px;
    border-radius: 999px;
    background: rgba(201, 131, 61, 0.12);
    color: var(--color-accent-dark);
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(201, 131, 61, 0.25);
}

.result-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-submit {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: #fff;
    border: none;
    padding: 15px 36px;
    border-radius: var(--radius-btn);
    font-family: var(--font-family);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.3px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    transition: transform var(--transition-btn), box-shadow var(--transition-btn), background var(--transition-btn);
}
.btn-submit:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 14px 32px rgba(201, 131, 61, 0.30);
    background: linear-gradient(135deg, #d48f4a, #9a4f1f);
}
.btn-submit:active { transform: scale(0.97); transition-duration: 0.08s; }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 15px 30px;
    border-radius: var(--radius-btn);
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: transform var(--transition-btn), background var(--transition-btn), color var(--transition-btn);
}
.btn-ghost:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-3px);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes popIn {
    from { opacity: 0; transform: scale(0.5); }
    to   { opacity: 1; transform: scale(1); }
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
    background: var(--color-primary);
    color: #fff;
    text-align: center;
    padding: 48px 24px 36px;
}
footer .footer-brand {
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}
footer p {
    max-width: 400px;
    margin: 6px auto 0;
    font-weight: 300;
    opacity: 0.85;
}
footer .divider {
    width: 60px;
    height: 2px;
    background: rgba(255, 255, 255, 0.20);
    margin: 18px auto 14px;
    border-radius: 4px;
}
footer .copyright {
    font-size: 0.85rem;
    opacity: 0.60;
    margin-top: 6px;
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
    .feature-card { opacity: 1 !important; transform: none !important; }
}