:root {
    --bg: #0d0d0f;
    --surface: #16161a;
    --surface2: #1e1e24;
    --border: #2a2a35;
    --accent: #c8f03d;
    --accent2: #5b6af0;
    --accent3: #f07a3d;
    --accent4: #3df0c8;
    --text: #f0f0f5;
    --muted: #7a7a90;
    --card-hover: #1e1e28;
}

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

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ── NAV ── */
nav {
    position: sticky;
    top: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    height: 64px;
    background: rgba(13, 13, 15, 0.95);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}

.nav-logo {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
    color: var(--text);
    flex-shrink: 0;
}

.logo-box {
    background: var(--accent);
    color: var(--bg);
    padding: 2px 7px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 800;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--muted);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-login {
    padding: 0.48rem 1.1rem;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--muted);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.nav-login:hover {
    color: var(--text);
    border-color: var(--text);
}

.nav-cta {
    background: var(--accent);
    color: var(--bg);
    border: none;
    padding: 0.5rem 1.2rem;
    border-radius: 100px;
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.2s;
    white-space: nowrap;
}

.nav-cta:hover {
    opacity: 0.85;
    transform: scale(0.97);
}

/* ── HAMBURGER ── */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface2);
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
}

.nav-hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.25s, opacity 0.25s, width 0.25s;
}

.nav-hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
    opacity: 0;
    width: 0;
}

.nav-hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── MOBILE DRAWER ── */
.nav-drawer {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 190;
    background: rgba(13, 13, 15, 0.98);
    backdrop-filter: blur(20px);
    padding: 1.5rem 1.5rem 2.5rem;
    flex-direction: column;
    overflow-y: auto;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.28s;
}

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

.drawer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
}

.drawer-links li a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 0.25rem;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    color: var(--text);
    font-size: 1.05rem;
    font-weight: 500;
    transition: color 0.2s;
}

.drawer-links li:last-child a {
    border-bottom: none;
}

.drawer-links li a:hover {
    color: var(--accent);
}

.drawer-actions {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.drawer-login {
    width: 100%;
    padding: 0.85rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface2);
    color: var(--text);
    font-family: 'Syne', sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.drawer-login:hover {
    border-color: var(--accent2);
    color: var(--accent2);
}

.drawer-cta {
    width: 100%;
    padding: 0.9rem;
    border-radius: 14px;
    border: none;
    background: var(--accent);
    color: var(--bg);
    font-family: 'Syne', sans-serif;
    font-size: 0.95rem;
    font-weight: 800;
    cursor: pointer;
    transition: opacity 0.2s;
}

.drawer-cta:hover {
    opacity: 0.88;
}

/* ── CATEGORY CHIPS ── */
.category-bar {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 2rem;
    overflow-x: auto;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    scrollbar-width: none;
}

.category-bar::-webkit-scrollbar {
    display: none;
}

.chip {
    flex-shrink: 0;
    padding: 0.4rem 1rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--surface2);
    color: var(--muted);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.chip:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.chip.active {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
    font-weight: 700;
}

/* ── HERO ── */
.hero {
    padding: 5rem 2rem 4.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 65% 55% at 50% 0%, rgba(91, 106, 240, 0.13) 0%, transparent 70%),
        radial-gradient(ellipse 40% 40% at 80% 80%, rgba(61, 240, 200, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 30% 40% at 10% 60%, rgba(200, 240, 61, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.9rem;
    border-radius: 100px;
    border: 1px solid rgba(91, 106, 240, 0.35);
    background: rgba(91, 106, 240, 0.08);
    color: var(--accent2);
    font-size: 0.78rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero-badge span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent2);
    display: inline-block;
    animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.4;
        transform: scale(0.7);
    }
}

.hero h1 {
    font-family: 'Syne', sans-serif;
    font-size: clamp(2.6rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: 1.2rem;
}

.hero h1 em {
    font-style: normal;
    color: var(--accent2);
}

.hero h1 .hi {
    color: var(--accent);
}

.hero p {
    max-width: 540px;
    margin: 0 auto 2rem;
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.7;
    font-weight: 300;
}

/* hero CTA row */
.hero-ctas {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2.8rem;
}

.hero-btn-primary {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.6rem;
    border-radius: 100px;
    background: var(--accent2);
    color: #fff;
    border: none;
    font-family: 'Syne', sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.hero-btn-primary:hover {
    opacity: 0.88;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(91, 106, 240, 0.35);
}

.hero-btn-secondary {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.hero-btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.hero-stats {
    display: inline-flex;
    gap: 2.5rem;
    padding: 1rem 2rem;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.stat {
    text-align: center;
}

.stat strong {
    display: block;
    font-family: 'Syne', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
}

.stat span {
    font-size: 0.78rem;
    color: var(--muted);
}

/* ── HOW IT WORKS ── */
.how-section {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 3rem 2rem;
}

.how-inner {
    max-width: 1280px;
    margin: 0 auto;
}

.how-label {
    font-family: 'Syne', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted);
    text-align: center;
    margin-bottom: 0.5rem;
}

.how-title {
    font-family: 'Syne', sans-serif;
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 800;
    text-align: center;
    letter-spacing: -0.03em;
    margin-bottom: 2.4rem;
}

.how-title em {
    font-style: normal;
    color: var(--accent4);
}

.how-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.how-step {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.4rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.2s;
}

.how-step:hover {
    border-color: rgba(61, 240, 200, 0.25);
}

.how-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: 16px 16px 0 0;
}

.how-step:nth-child(1)::before {
    background: var(--accent2);
}

.how-step:nth-child(2)::before {
    background: var(--accent4);
}

.how-step:nth-child(3)::before {
    background: var(--accent);
}

.how-step:nth-child(4)::before {
    background: var(--accent3);
}

.how-step-num {
    font-family: 'Syne', sans-serif;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.75rem;
}

.how-step-icon {
    font-size: 1.8rem;
    margin-bottom: 0.6rem;
    display: block;
}

.how-step h3 {
    font-family: 'Syne', sans-serif;
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 0.4rem;
    letter-spacing: -0.01em;
}

.how-step p {
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.55;
}

/* ── LEARNING PATH BANNER ── */
.path-banner {
    max-width: 1280px;
    margin: 3rem auto 0;
    padding: 0 2rem;
}

.path-banner-inner {
    background: linear-gradient(135deg, rgba(91, 106, 240, 0.08) 0%, rgba(61, 240, 200, 0.05) 100%);
    border: 1px solid rgba(91, 106, 240, 0.22);
    border-radius: 20px;
    padding: 1.8rem 2rem;
    display: flex;
    align-items: center;
    gap: 1.4rem;
    position: relative;
    overflow: hidden;
}

.path-banner-inner::after {
    content: '🗺';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 5rem;
    opacity: 0.06;
    pointer-events: none;
}

.pb-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.pb-body {
    flex: 1;
}

.pb-body h3 {
    font-family: 'Syne', sans-serif;
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 0.3rem;
    letter-spacing: -0.02em;
}

.pb-body h3 em {
    font-style: normal;
    color: var(--accent2);
}

.pb-body p {
    font-size: 0.83rem;
    color: var(--muted);
    line-height: 1.55;
}

.pb-btn {
    flex-shrink: 0;
    padding: 0.62rem 1.3rem;
    border-radius: 12px;
    background: var(--accent2);
    color: #fff;
    border: none;
    font-family: 'Syne', sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.pb-btn:hover {
    opacity: 0.88;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(91, 106, 240, 0.3);
}

/* ── MAIN CONTENT ── */
main {
    padding: 3rem 2rem 4rem;
    max-width: 1280px;
    margin: 0 auto;
}

.section {
    margin-bottom: 3.5rem;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.4rem;
}

.section-title {
    font-family: 'Syne', sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.section-title .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.section-subtitle {
    font-size: 0.82rem;
    color: var(--muted);
    margin-top: 0.2rem;
    font-weight: 300;
}

.section-header-left {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.see-all {
    font-size: 0.8rem;
    color: var(--muted);
    text-decoration: none;
    border: 1px solid var(--border);
    padding: 0.3rem 0.9rem;
    border-radius: 100px;
    transition: all 0.2s;
    white-space: nowrap;
}

.see-all:hover {
    color: var(--text);
    border-color: var(--text);
}

/* ── CARD GRID ── */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
}

/* ── CARD ── */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
    cursor: pointer;
    text-decoration: none;
    color: var(--text);
    display: block;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(200, 240, 61, 0.25);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(200, 240, 61, 0.1);
}

.card-img {
    height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.6rem;
    font-weight: 800;
    font-family: 'Syne', sans-serif;
    letter-spacing: -0.05em;
    position: relative;
    overflow: hidden;
    user-select: none;
}

.card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.25);
}

.card-img-text {
    position: relative;
    z-index: 1;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

/* difficulty colour stripe at top of card */
.card-stripe {
    height: 3px;
    width: 100%;
}

.card-body {
    padding: 1rem 1rem 0.9rem;
}

.card-title {
    font-family: 'Syne', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
    letter-spacing: -0.01em;
}

.card-desc {
    font-size: 0.8rem;
    color: var(--muted);
    line-height: 1.5;
    margin-bottom: 0.8rem;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
    font-size: 0.75rem;
    color: var(--muted);
}

.card-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.9rem;
}

.card-chip {
    padding: 0.22rem 0.65rem;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 600;
    border: 1px solid;
    letter-spacing: 0.02em;
}

/* card action row */
.card-actions {
    display: flex;
    gap: 0.5rem;
    padding-top: 0.6rem;
    border-top: 1px solid var(--border);
}

.card-btn-learn {
    flex: 1;
    padding: 0.5rem 0;
    border-radius: 10px;
    border: 1px solid rgba(91, 106, 240, 0.3);
    background: rgba(91, 106, 240, 0.07);
    color: var(--accent2);
    font-family: 'Syne', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.18s;
}

.card-btn-learn:hover {
    background: rgba(91, 106, 240, 0.14);
}

.card-btn-quiz {
    flex: 1;
    padding: 0.5rem 0;
    border-radius: 10px;
    border: 1px solid rgba(200, 240, 61, 0.3);
    background: rgba(200, 240, 61, 0.07);
    color: var(--accent);
    font-family: 'Syne', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.18s;
}

.card-btn-quiz:hover {
    background: rgba(200, 240, 61, 0.14);
}

/* progress bar on card (for "continue" cards) */
.card-progress-wrap {
    margin-bottom: 0.75rem;
}

.card-progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--muted);
    margin-bottom: 0.3rem;
}

.card-progress-bar {
    height: 4px;
    background: var(--surface2);
    border-radius: 100px;
    overflow: hidden;
}

.card-progress-fill {
    height: 100%;
    border-radius: 100px;
    background: linear-gradient(90deg, var(--accent2), var(--accent4));
}

/* ── PICK YOUR LEVEL STRIP ── */
.level-strip {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.4rem 1.6rem;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    flex-wrap: wrap;
    margin-bottom: 3.5rem;
}

.level-strip-label {
    font-family: 'Syne', sans-serif;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text);
    flex-shrink: 0;
}

.level-strip-label span {
    color: var(--muted);
    font-weight: 400;
    font-size: 0.78rem;
    display: block;
    margin-top: 0.1rem;
}

.level-btns {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    flex: 1;
}

.level-btn {
    padding: 0.45rem 1.1rem;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: var(--surface2);
    color: var(--muted);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.level-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.level-btn.active {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
    font-weight: 700;
}

/* ── DAILY LEARNING STREAK ── */
/* .streak-section {
      background: linear-gradient(135deg, rgba(200,240,61,0.06) 0%, rgba(91,106,240,0.06) 100%);
      border: 1px solid rgba(200,240,61,0.14);
      border-radius: 20px;
      padding: 1.6rem 2rem;
      display: flex;
      align-items: center;
      gap: 1.5rem;
      margin-bottom: 3.5rem;
      position: relative;
      overflow: hidden;
    }

    .streak-section::before {
      content: '🔥';
      position: absolute;
      right: 1.8rem;
      top: 50%;
      transform: translateY(-50%);
      font-size: 5.5rem;
      opacity: 0.05;
      pointer-events: none;
    }

    .streak-days {
      display: flex;
      gap: 0.5rem;
      flex-shrink: 0;
    }

    .streak-day {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.3rem;
    }

    .streak-bubble {
      width: 34px;
      height: 34px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.7rem;
      font-family: 'Syne', sans-serif;
      font-weight: 800;
    }

    .streak-bubble.done { background: var(--accent); color: var(--bg); }
    .streak-bubble.today { background: rgba(200,240,61,0.15); border: 2px solid var(--accent); color: var(--accent); }
    .streak-bubble.upcoming { background: var(--surface2); border: 1px solid var(--border); color: var(--muted); }

    .streak-day-label { font-size: 0.6rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }

    .streak-body { flex: 1; }

    .streak-body h3 {
      font-family: 'Syne', sans-serif;
      font-size: 1rem;
      font-weight: 800;
      margin-bottom: 0.25rem;
    }

    .streak-body h3 em { font-style: normal; color: var(--accent); }

    .streak-body p { font-size: 0.82rem; color: var(--muted); line-height: 1.5; }

    .streak-btn {
      flex-shrink: 0;
      padding: 0.6rem 1.2rem;
      border-radius: 100px;
      background: var(--accent);
      color: var(--bg);
      border: none;
      font-family: 'Syne', sans-serif;
      font-size: 0.8rem;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.2s;
      white-space: nowrap;
    }

    .streak-btn:hover { opacity: 0.88; transform: scale(0.97); } */

/* ── TOPIC GUIDES SECTION ── */
.guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.guide-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    color: var(--text);
    display: flex;
    flex-direction: column;
    transition: transform 0.22s, border-color 0.22s, box-shadow 0.22s;
}

.guide-card:hover {
    transform: translateY(-3px);
    border-color: rgba(91, 106, 240, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.guide-band {
    height: 4px;
}

.guide-card-body {
    padding: 1.2rem;
    flex: 1;
}

.guide-card-icon-row {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-bottom: 0.8rem;
}

.guide-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    flex-shrink: 0;
}

.guide-type {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
}

.guide-title {
    font-family: 'Syne', sans-serif;
    font-size: 0.92rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    line-height: 1.3;
}

.guide-desc {
    font-size: 0.79rem;
    color: var(--muted);
    line-height: 1.55;
}

.guide-footer {
    padding: 0.7rem 1.2rem;
    border-top: 1px solid var(--border);
    background: var(--surface2);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.guide-meta {
    font-size: 0.73rem;
    color: var(--muted);
    display: flex;
    gap: 0.8rem;
}

.guide-cta {
    font-family: 'Syne', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: gap 0.2s;
}

.guide-card:hover .guide-cta {
    gap: 0.55rem;
}

/* ── TESTIMONIALS ── */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.testimonial-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.3rem 1.4rem;
    transition: border-color 0.2s;
}

.testimonial-card:hover {
    border-color: rgba(200, 240, 61, 0.15);
}

.testimonial-quote {
    font-size: 0.88rem;
    color: rgba(240, 240, 245, 0.8);
    line-height: 1.65;
    margin-bottom: 1rem;
    font-style: italic;
    font-weight: 300;
}

.testimonial-quote::before {
    content: '"';
    color: var(--accent);
    font-size: 1.2rem;
    font-style: normal;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.t-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Syne', sans-serif;
    font-size: 0.72rem;
    font-weight: 800;
    flex-shrink: 0;
}

.t-name {
    font-size: 0.82rem;
    font-weight: 600;
}

.t-role {
    font-size: 0.72rem;
    color: var(--muted);
}

/* ── FOOTER ── */
footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 2.5rem 2rem 1.5rem;
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.footer-brand p {
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.6;
    margin-top: 0.7rem;
    max-width: 220px;
}

.footer-col h4 {
    font-family: 'Syne', sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 0.9rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul a {
    text-decoration: none;
    color: var(--text);
    font-size: 0.82rem;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.footer-col ul a:hover {
    opacity: 1;
}

.footer-bottom {
    max-width: 1280px;
    margin: 1.2rem auto 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--muted);
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-up {
    animation: fadeUp 0.5s ease both;
}

.fade-up-1 {
    animation-delay: 0.05s;
}

.fade-up-2 {
    animation-delay: 0.12s;
}

.fade-up-3 {
    animation-delay: 0.2s;
}

.fade-up-4 {
    animation-delay: 0.28s;
}

/* ── RESPONSIVE ── */

/* Tablet: 768px and below */
@media (max-width: 768px) {

    /* nav */
    nav {
        padding: 0 1.25rem;
    }

    .nav-links {
        display: none;
    }

    .nav-right .nav-login {
        display: none;
    }

    .nav-hamburger {
        display: flex;
    }

    .nav-drawer {
        display: flex;
    }

    /* hero */
    .hero {
        padding: 3.5rem 1.25rem 3rem;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    .hero p {
        font-size: 0.98rem;
    }

    .hero-stats {
        gap: 1.5rem;
        padding: 0.9rem 1.4rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-ctas {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-btn-primary,
    .hero-btn-secondary {
        justify-content: center;
    }

    /* how it works */
    .how-section {
        padding: 2.5rem 1.25rem;
    }

    .how-steps {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }

    /* path banner */
    .path-banner {
        padding: 0 1.25rem;
        margin-top: 2rem;
    }

    .path-banner-inner {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .pb-btn {
        width: 100%;
    }

    /* main sections */
    main {
        padding: 2rem 1.25rem 3rem;
    }

    .section {
        margin-bottom: 2.5rem;
    }

    /* streak */
    .streak-section {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.3rem 1.25rem;
        gap: 1rem;
    }

    .streak-btn {
        width: 100%;
        text-align: center;
    }

    /* level strip */
    .level-strip {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.85rem;
        padding: 1.2rem;
    }

    .level-btns {
        width: 100%;
    }

    /* cards */
    .cards-grid {
        grid-template-columns: 1fr 1fr;
    }

    .guides-grid {
        grid-template-columns: 1fr 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    /* category bar */
    .category-bar {
        padding: 0.75rem 1.25rem;
    }

    /* footer */
    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.4rem;
        text-align: center;
    }
}

/* Mobile: 540px and below */
@media (max-width: 540px) {

    /* hero */
    .hero {
        padding: 2.8rem 1rem 2.5rem;
    }

    .hero h1 {
        font-size: 2rem;
        letter-spacing: -0.03em;
    }

    .hero-stats {
        gap: 0.75rem;
        padding: 0.75rem 1rem;
    }

    .hero-stats .stat strong {
        font-size: 1.2rem;
    }

    .hero-stats .stat span {
        font-size: 0.72rem;
    }

    /* how */
    .how-section {
        padding: 2rem 1rem;
    }

    .how-steps {
        grid-template-columns: 1fr;
    }

    .how-title {
        font-size: 1.35rem;
    }

    /* cards — single column */
    .cards-grid {
        grid-template-columns: 1fr;
    }

    .guides-grid {
        grid-template-columns: 1fr;
    }

    /* streak */
    .streak-days {
        display: none;
    }

    .streak-section {
        padding: 1.2rem 1rem;
    }

    /* section header */
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.6rem;
    }

    .see-all {
        align-self: flex-start;
    }

    /* path banner */
    .path-banner {
        padding: 0 1rem;
    }

    /* main */
    main {
        padding: 1.5rem 1rem 2.5rem;
    }

    /* level strip */
    .level-strip {
        padding: 1rem;
    }

    .level-btn {
        font-size: 0.75rem;
        padding: 0.4rem 0.85rem;
    }

    /* footer */
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    footer {
        padding: 2rem 1rem 1.2rem;
    }
}

/* Small phones: 380px and below */
@media (max-width: 380px) {
    nav {
        padding: 0 1rem;
    }

    .nav-logo {
        font-size: 1.2rem;
    }

    .logo-box {
        font-size: 0.88rem;
        padding: 2px 6px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 0.6rem;
    }

    .card-actions {
        flex-direction: column;
        gap: 0.4rem;
    }

    .card-btn-learn,
    .card-btn-quiz {
        width: 100%;
        padding: 0.55rem 0;
    }

    .how-step {
        padding: 1.1rem;
    }
}