/* ============== HERO ============== */
.st-hero {
    position: relative;
    padding: 60px 0 50px;
    background: linear-gradient(135deg, #030641 0%, #0e3789 60%, #2950bd 100%);
    color: #fff;
    overflow: hidden;
    isolation: isolate;
}

.st-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(720px 460px at 85% 20%, rgba(74, 144, 255, .22), transparent 60%),
    radial-gradient(620px 420px at 10% 90%, rgba(26, 188, 136, .18), transparent 60%);
    z-index: -1;
}

.st-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
    z-index: -1;
}

.st-hero .container {
    text-align: center;
    position: relative;
    z-index: 1;
}

.st-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 16px;
    border-radius: 999px;
    background: rgba(26, 188, 136, .18);
    border: 1px solid rgba(26, 188, 136, .36);
    color: #6cf2bf;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .6px;
    text-transform: uppercase;
    margin-bottom: 16px;
    backdrop-filter: blur(10px);
}

.st-eyebrow i {
    font-size: 11px;
}

.st-title {
    font-size: clamp(32px, 5.2vw, 52px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -1.2px;
    margin: 0 0 16px;
}

.st-title .grad {
    background: linear-gradient(90deg, #7ec0ff, #1abc88, #7ec0ff);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: shineText 4s linear infinite;
}

@keyframes shineText {
    to {
        background-position: 200% 0;
    }
}

.st-sub {
    font-size: 16px;
    color: rgba(255, 255, 255, .78);
    max-width: 640px;
    margin: 0 auto 22px;
    line-height: 1.6;
}

.st-trust {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.st-trust span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    font-weight: 600;
    padding: 7px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .12);
    color: rgba(255, 255, 255, .88);
    backdrop-filter: blur(8px);
}

.st-trust i {
    color: #1abc88;
}

/* ============== FILTER BAR ============== */
.filter-bar {
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 30;
    box-shadow: 0 4px 14px rgba(10, 20, 40, .04);
}

.fb-grid {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.fb-chips {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    flex: 1;
}

.fb-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-soft);
    border: 1.5px solid var(--line);
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 700;
    color: var(--text-2);
    cursor: pointer;
    border: 0;
    font-family: inherit;
    transition: all .2s var(--ease);
}

.fb-chip:hover {
    background: #fff;
    color: var(--brand-2);
    box-shadow: 0 2px 8px rgba(14, 55, 137, .10);
}

.fb-chip.active {
    background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
    color: #fff;
    box-shadow: 0 4px 12px rgba(14, 55, 137, .30);
}

.fb-chip .ic {
    font-size: 11px;
}

.fb-chip .ct {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    padding: 1px 5px;
    background: rgba(14, 55, 137, .12);
    color: var(--brand-2);
    font-size: 10px;
    border-radius: 999px;
    font-weight: 800;
}

.fb-chip.active .ct {
    background: rgba(255, 255, 255, .20);
    color: #fff;
}

.fb-search {
    position: relative;
    min-width: 220px;
}

.fb-search i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-soft);
    font-size: 13px;
    pointer-events: none;
}

.fb-search input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    font: inherit;
    font-size: 13px;
    background: var(--bg-soft);
    border: 1.5px solid var(--line);
    border-radius: 999px;
    outline: 0;
    color: var(--text);
    transition: all .2s var(--ease);
}

.fb-search input:focus {
    border-color: var(--brand-2);
    background: #fff;
}

@media (max-width: 820px) {
    .filter-bar {
        position: static;
    }

    .fb-search {
        width: 100%;
    }
}

/* ============== GRID ============== */
.grid-section {
    background: var(--bg);
    padding: 36px 0 50px;
}

.grid-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
    flex-wrap: wrap;
    gap: 10px;
}

.grid-head .count {
    font-size: 13.5px;
    color: var(--text-mute);
    font-weight: 600;
}

.grid-head .count b {
    color: var(--text);
    font-weight: 800;
}

.grid-head .sort {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    color: var(--text-mute);
    font-weight: 600;
}

.grid-head .sort select {
    font: inherit;
    font-size: 12.5px;
    font-weight: 700;
    padding: 7px 30px 7px 12px;
    background-color: #fff;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%238a93a8' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    border: 1.5px solid var(--line);
    border-radius: 8px;
    color: var(--text-2);
    cursor: pointer;
    appearance: none;
    outline: 0;
}

.grid-head .sort select:focus {
    border-color: var(--brand-2);
}

.tut-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

@media (max-width: 1100px) {
    .tut-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 820px) {
    .tut-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .tut-grid {
        grid-template-columns: 1fr;
    }
}

.tut-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 18px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
    position: relative;
}

.tut-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -16px rgba(10, 20, 40, .18);
    border-color: var(--brand-2);
}

.tut-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--c1, var(--brand-1)), var(--c2, var(--brand-3)));
    display: flex;
    align-items: center;
    justify-content: center;
    isolation: isolate;
    overflow: hidden;
}

.tut-thumb::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 70%, rgba(255, 255, 255, .18), transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(0, 0, 0, .20), transparent 60%);
    z-index: -1;
}

/* Cover thumbnail image (placeholder now, swapped from DB later) */
.tut-thumb .tut-cover {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    transition: transform .4s var(--ease);
}

.tut-card:hover .tut-thumb .tut-cover {
    transform: scale(1.05);
}

/* Keep overlays/badges above the cover image */
.tut-thumb .tut-free,
.tut-thumb .tut-eps,
.tut-thumb .tut-play,
.tut-thumb .tut-dur {
    z-index: 2;
}

/* Readability scrim over the cover */
.tut-thumb .tut-cover + .tut-scrim {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180deg, rgba(3, 6, 65, .10), rgba(3, 6, 65, .30));
}

.tut-thumb .tut-play {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .95);
    display: grid;
    place-items: center;
    color: var(--brand-2);
    font-size: 17px;
    padding-left: 4px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, .30);
    transition: transform .3s var(--ease), background .3s var(--ease);
}

.tut-card:hover .tut-thumb .tut-play {
    transform: scale(1.12);
}

/* Free flag (top-left of thumbnail) */
.tut-free {
    position: absolute;
    top: 10px;
    left: 10px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 9px;
    background: rgba(26, 188, 136, .95);
    color: #fff;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .6px;
    text-transform: uppercase;
    border-radius: 5px;
    box-shadow: 0 4px 10px rgba(26, 188, 136, .30);
}

.tut-free i {
    font-size: 9px;
}

/* Episodes count (top-right) */
.tut-eps {
    position: absolute;
    top: 10px;
    right: 10px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 9px;
    background: rgba(0, 0, 0, .55);
    color: #fff;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .4px;
    border-radius: 5px;
    backdrop-filter: blur(6px);
}

.tut-eps i {
    font-size: 9px;
}

/* Duration (bottom-right) */
.tut-dur {
    position: absolute;
    bottom: 10px;
    right: 10px;
    font-size: 11px;
    font-weight: 800;
    padding: 3px 8px;
    background: rgba(0, 0, 0, .7);
    color: #fff;
    border-radius: 5px;
    backdrop-filter: blur(6px);
}

.tut-meta {
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.tut-cat-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.tut-cat {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 10.5px;
    font-weight: 800;
    color: var(--c1, var(--brand-2));
    letter-spacing: .4px;
    text-transform: uppercase;
}

.tut-cat .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--c1, var(--brand-2));
}

.tut-level {
    display: inline-flex;
    align-items: center;
    font-size: 9.5px;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 999px;
    letter-spacing: .4px;
    text-transform: uppercase;
    margin-left: auto;
}

.tut-level.b {
    background: rgba(26, 188, 136, .12);
    color: #0f7a55;
}

.tut-level.i {
    background: rgba(245, 183, 60, .14);
    color: #a07c1c;
}

.tut-level.a {
    background: rgba(239, 71, 96, .12);
    color: #c2185b;
}

.tut-title {
    font-size: 15px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.3;
    letter-spacing: -.2px;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 39px;
}

.tut-desc {
    font-size: 12.5px;
    color: var(--text-mute);
    line-height: 1.5;
    margin: 0 0 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tut-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px dashed var(--line);
    font-size: 11.5px;
    color: var(--text-soft);
    font-weight: 600;
}

.tut-foot .author {
    color: var(--text-2);
    font-weight: 700;
}

.tut-foot .watch {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--brand-2);
    font-weight: 800;
    letter-spacing: .3px;
    text-transform: uppercase;
    font-size: 10.5px;
}

.tut-card:hover .tut-foot .watch i {
    transform: translateX(3px);
}

.tut-foot .watch i {
    transition: transform .25s var(--ease);
}

/* Per-category color */
.tut-card[data-c="basics"] {
    --c1: #0e3789;
    --c2: #4f8cff;
}

.tut-card[data-c="technical"] {
    --c1: #2950bd;
    --c2: #7ec0ff;
}

.tut-card[data-c="risk"] {
    --c1: #0d8a5f;
    --c2: #1abc88;
}

.tut-card[data-c="psychology"] {
    --c1: #6e2eb1;
    --c2: #b15ec1;
}

.tut-card[data-c="platforms"] {
    --c1: #c2185b;
    --c2: #ef4760;
}

.tut-card[data-c="strategies"] {
    --c1: #d4901c;
    --c2: #f5b73c;
}

/* No results state */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 22px;
    color: var(--text-mute);
    background: #fff;
    border: 1px dashed var(--line);
    border-radius: 18px;
}

.no-results i {
    font-size: 38px;
    color: var(--text-soft);
    margin-bottom: 12px;
    display: block;
}

.no-results h4 {
    font-size: 17px;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 6px;
}

.no-results p {
    font-size: 14px;
    margin: 0 0 14px;
}

.no-results button {
    padding: 9px 18px;
    background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
    color: #fff;
    border: 0;
    border-radius: 10px;
    font: inherit;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
}

/* ============== PAGINATION ============== */
.pagi-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.pagi-info {
    width: 100%;
    text-align: center;
    font-size: 13px;
    color: var(--text-mute);
    font-weight: 600;
    margin-bottom: 14px;
}

.pagi-btn {
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    border-radius: 10px;
    background: #fff;
    border: 1.5px solid var(--line);
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-2);
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: all .2s var(--ease);
}

.pagi-btn:hover:not(:disabled) {
    background: var(--bg-soft);
    color: var(--brand-2);
    border-color: var(--brand-2);
}

.pagi-btn.active {
    background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 6px 14px rgba(14, 55, 137, .30);
}

.pagi-btn:disabled {
    opacity: .35;
    cursor: not-allowed;
}

.pagi-ellipsis {
    padding: 0 6px;
    color: var(--text-soft);
    font-weight: 800;
}

/* ============== WHY/INFO ============== */
.info-section {
    padding: 60px 0;
    background: linear-gradient(180deg, #f6f7fb 0%, #eef1f8 100%);
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 36px;
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(14, 55, 137, .08);
    color: var(--brand-2);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .5px;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.section-title {
    font-size: clamp(24px, 3.4vw, 34px);
    font-weight: 800;
    letter-spacing: -.5px;
    margin: 0 0 10px;
    color: var(--text);
}

.section-sub {
    font-size: 15px;
    color: var(--text-mute);
    margin: 0;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

@media (max-width: 880px) {
    .why-grid {
        grid-template-columns: 1fr;
    }
}

.why-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 28px 24px;
    text-align: center;
    transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}

.why-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.why-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, var(--brand-2), var(--brand-3));
    color: #fff;
    border-radius: 16px;
    display: grid;
    place-items: center;
    font-size: 22px;
    box-shadow: 0 8px 20px rgba(14, 55, 137, .25);
}

.why-card.green .why-icon {
    background: linear-gradient(135deg, #1abc88, #0d8a5f);
    box-shadow: 0 8px 20px rgba(26, 188, 136, .25);
}

.why-card.purple .why-icon {
    background: linear-gradient(135deg, #6e2eb1, #b15ec1);
    box-shadow: 0 8px 20px rgba(110, 46, 177, .25);
}

.why-card h4 {
    margin: 0 0 6px;
    font-size: 17px;
    font-weight: 800;
    color: var(--text);
}

.why-card p {
    margin: 0;
    font-size: 14px;
    color: var(--text-mute);
    line-height: 1.6;
}

/* ============== CTA ============== */
.cta-strip {
    padding: 60px 0;
    background: var(--bg);
}

.cta-band {
    background: linear-gradient(135deg, #030641 0%, #0e3789 70%, #2950bd 100%);
    border-radius: 28px;
    padding: 44px;
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 24px;
    isolation: isolate;
}

.cta-band::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(700px 320px at 100% 100%, rgba(26, 188, 136, .22), transparent 60%),
    radial-gradient(500px 260px at 0% 0%, rgba(74, 144, 255, .20), transparent 60%);
    z-index: -1;
}

.cta-band h3 {
    color: #fff;
    font-size: clamp(22px, 3.2vw, 30px);
    font-weight: 800;
    margin: 0 0 6px;
    letter-spacing: -.4px;
}

.cta-band p {
    color: rgba(255, 255, 255, .78);
    font-size: 14.5px;
    margin: 0;
    max-width: 540px;
}

.cta-band .actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}

.cta-btn.primary {
    background: linear-gradient(135deg, #f5d77a, #d4af37);
    color: #4a3300;
    box-shadow: 0 10px 28px rgba(245, 183, 60, .30);
}

.cta-btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 36px rgba(245, 183, 60, .45);
}

.cta-btn.ghost {
    background: rgba(255, 255, 255, .10);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .20);
}

.cta-btn.ghost:hover {
    background: rgba(255, 255, 255, .18);
}

@media (max-width: 760px) {
    .cta-band {
        grid-template-columns: 1fr;
        padding: 32px 24px;
        text-align: center;
    }

    .cta-band p {
        margin: 0 auto;
    }

    .cta-band .actions {
        justify-content: center;
    }
}

@media (max-width: 720px) {
    .st-hero {
        padding: 44px 0 36px;
    }

    .grid-section {
        padding: 28px 0 40px;
    }

    .info-section, .cta-strip {
        padding: 40px 0;
    }
}