/* ── Variables ── */
:root {
    --deep-space-blue: #102a43;
    --white: #ffffff;
    --tuscan-sun: #f5cb5c;
    --pacific-cyan: #2d93ad;
    --rosy-granite: #7d7c84;
    --light-bg: #f8fafc;

    --cat-calculators: #7b5ea7;
    --cat-projects: #2d93ad;
    --cat-learning: #3a7d44;
    --cat-news: #b5451b;
    --cat-maker: #7b5ea7;
    --cat-vendor: #c07d2b;
    --cat-dev: #1a6e7a;
}

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

/* ── Base ── */
body {
    font-family: 'Inter', sans-serif;
    color: var(--deep-space-blue);
    background-color: var(--white);
    line-height: 1.6;
}

h1, h2, h3, .logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 400;
}

/* ── Navigation ── */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 10%;
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.logo {
    font-size: 5rem;
    font-weight: 100;
    color: var(--deep-space-blue);
    text-decoration: none;
}

.logo img {
    height: 1em;
    width: auto;
    vertical-align: middle;
}

.logo span {
    color: var(--tuscan-sun);
    font-weight: 400;
    font-style: normal;
}

.tagline {
    font-size: 0.9rem;
    font-weight: 100;
    color: var(--rosy-granite);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.nav-links a {
    text-decoration: none;
    font-weight: 400;
    font-size: 0.9rem;
    color: var(--rosy-granite);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.2s;
}

.nav-links a:hover { color: var(--pacific-cyan); }
.nav-links a.active { color: var(--tuscan-sun); }

/* ── Hamburger ── */
.hamburger-toggle { display: none; }

.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: background 0.2s;
}

.hamburger-btn:hover { background: var(--light-bg); }

.hamburger-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--deep-space-blue);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.hamburger-toggle:checked ~ nav .hamburger-btn span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger-toggle:checked ~ nav .hamburger-btn span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.hamburger-toggle:checked ~ nav .hamburger-btn span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.hamburger-toggle:checked ~ nav .nav-links {
    display: flex;
}

/* ── Shared layout ── */
.section-padding {
    padding: 5rem 10%;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 400;
    margin-bottom: 3rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.card {
    padding: 2rem;
    border-radius: 20px;
    background: var(--white);
    border: 1px solid #eee;
    transition: all 0.3s;
}

.card-why {
    background: var(--light-bg);
}

.card:hover {
    border-color: var(--pacific-cyan);
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.card h3 {
    color: var(--pacific-cyan);
    margin-bottom: 1rem;
}

/* ── Footer ── */
footer {
    text-align: center;
    padding: 2rem;
    font-size: 0.9rem;
    color: var(--rosy-granite);
    border-top: 1px solid #eee;
}


/* ════════════════════════════════════════
   INDEX PAGE
════════════════════════════════════════ */

.hero {
    padding: 4rem 10%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    background: linear-gradient(135deg, var(--white) 0%, var(--light-bg) 100%);
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--deep-space-blue);
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--rosy-granite);
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 400;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--tuscan-sun);
    color: var(--deep-space-blue);
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(245, 203, 92, 0.4);
}

.btn-secondary {
    background-color: var(--pacific-cyan);
    color: var(--white);
    margin-left: 1rem;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    gap: -20px;
}

.what-you-get {
    background-color: var(--deep-space-blue);
    color: var(--white);
}

.what-you-get .section-title {
    color: var(--white);
}

.what-you-get .card {
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.what-you-get .card h3 {
    color: var(--tuscan-sun);
}

.final-cta {
    text-align: center;
    background: var(--light-bg);
    padding: 6rem 10%;
}

.final-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.final-cta p {
    max-width: 700px;
    margin: 0 auto 2rem auto;
    font-size: 1.2rem;
    color: var(--rosy-granite);
}

.what-is-it p,
ul {
    max-width: 700px;
    margin: 0 auto 2rem auto;
    font-size: 1.2rem;
    color: var(--rosy-granite);
}

ul {
    padding-left: 2em;
}

.archive-link {
    margin-top: 2rem;
    display: block;
    color: var(--pacific-cyan);
    text-decoration: none;
    font-weight: 400;
}

.archive-link:hover {
    text-decoration: underline;
}


/* ════════════════════════════════════════
   FAVOURITES PAGE
════════════════════════════════════════ */

.page-header {
    background: linear-gradient(135deg, var(--deep-space-blue) 0%, #1a3f5c 100%);
    padding: 4rem 10% 3rem;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(45,147,173,0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(245,203,92,0.1) 0%, transparent 40%);
    pointer-events: none;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    position: relative;
    font-weight: 400;
}

.page-header h1 em {
    color: var(--tuscan-sun);
    font-style: normal;
}

.page-header p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.7);
    max-width: 600px;
    margin: 0 auto 2rem;
    position: relative;
}

.filter-bar {
    padding: 1.5rem 10%;
    background: var(--light-bg);
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    align-items: center;
    position: sticky;
    top: 73px;
    z-index: 900;
}

.filter-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--rosy-granite);
    margin-right: 0.5rem;
}

.filter-btn {
    padding: 0.4rem 1rem;
    border-radius: 50px;
    border: 2px solid transparent;
    background: var(--white);
    font-family: 'Inter', sans-serif;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--deep-space-blue);
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.filter-btn:hover { transform: translateY(-1px); box-shadow: 0 3px 8px rgba(0,0,0,0.1); }
.filter-btn.active { color: var(--white); border-color: transparent; }

.filter-btn[data-cat="all"].active        { background: var(--deep-space-blue); }
.filter-btn[data-cat="calculators"].active { background: var(--cat-calculators); }
.filter-btn[data-cat="projects"].active   { background: var(--cat-projects); }
.filter-btn[data-cat="learning"].active   { background: var(--cat-learning); }
.filter-btn[data-cat="news"].active       { background: var(--cat-news); }
.filter-btn[data-cat="maker"].active      { background: var(--cat-maker); }
.filter-btn[data-cat="vendor"].active     { background: var(--cat-vendor); }
.filter-btn[data-cat="dev"].active        { background: var(--cat-dev); }

.site-count {
    margin-left: auto;
    font-size: 0.82rem;
    color: var(--rosy-granite);
    font-weight: 600;
}

.content {
    padding: 3rem 10% 5rem;
}

.category-section {
    margin-bottom: 3.5rem;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid #e2e8f0;
}

.category-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.category-header h2 {
    font-size: 1.4rem;
    color: var(--deep-space-blue);
}

.category-header .cat-count {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--rosy-granite);
    background: var(--light-bg);
    padding: 0.2rem 0.6rem;
    border-radius: 50px;
    margin-left: auto;
}

.link-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
}

.site-card {
    display: flex;
    flex-direction: column;
    padding: 1.25rem 1.5rem;
    border-radius: 14px;
    background: var(--white);
    border: 1.5px solid #e8edf2;
    text-decoration: none;
    color: inherit;
    transition: all 0.22s ease;
    position: relative;
    overflow: hidden;
}

.site-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: 14px 0 0 14px;
    opacity: 0;
    transition: opacity 0.22s;
}

.site-card:hover {
    border-color: transparent;
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.site-card:hover::before { opacity: 1; }

[data-cat="calculators"] .site-card::before,
.site-card[data-cat="calculators"]::before { background: var(--cat-calculators); }
[data-cat="calculators"] .site-card:hover,
.site-card[data-cat="calculators"]:hover { border-color: rgba(26,110,122,0.3); box-shadow: 0 8px 24px rgba(26,110,122,0.12); }

[data-cat="projects"] .site-card::before,
.site-card[data-cat="projects"]::before { background: var(--cat-projects); }
[data-cat="projects"] .site-card:hover,
.site-card[data-cat="projects"]:hover { border-color: rgba(45,147,173,0.3); box-shadow: 0 8px 24px rgba(45,147,173,0.12); }

[data-cat="learning"] .site-card::before,
.site-card[data-cat="learning"]::before { background: var(--cat-learning); }
[data-cat="learning"] .site-card:hover,
.site-card[data-cat="learning"]:hover { border-color: rgba(58,125,68,0.3); box-shadow: 0 8px 24px rgba(58,125,68,0.12); }

[data-cat="news"] .site-card::before,
.site-card[data-cat="news"]::before { background: var(--cat-news); }
[data-cat="news"] .site-card:hover,
.site-card[data-cat="news"]:hover { border-color: rgba(181,69,27,0.3); box-shadow: 0 8px 24px rgba(181,69,27,0.12); }

[data-cat="maker"] .site-card::before,
.site-card[data-cat="maker"]::before { background: var(--cat-maker); }
[data-cat="maker"] .site-card:hover,
.site-card[data-cat="maker"]:hover { border-color: rgba(123,94,167,0.3); box-shadow: 0 8px 24px rgba(123,94,167,0.12); }

[data-cat="vendor"] .site-card::before,
.site-card[data-cat="vendor"]::before { background: var(--cat-vendor); }
[data-cat="vendor"] .site-card:hover,
.site-card[data-cat="vendor"]:hover { border-color: rgba(192,125,43,0.3); box-shadow: 0 8px 24px rgba(192,125,43,0.12); }

[data-cat="dev"] .site-card::before,
.site-card[data-cat="dev"]::before { background: var(--cat-dev); }
[data-cat="dev"] .site-card:hover,
.site-card[data-cat="dev"]:hover { border-color: rgba(26,110,122,0.3); box-shadow: 0 8px 24px rgba(26,110,122,0.12); }

.site-name {
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--deep-space-blue);
    margin-bottom: 0.2rem;
}

.site-url {
    font-size: 0.76rem;
    color: var(--deep-space-blue);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.site-desc {
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--rosy-granite);
    margin-top: 0.2rem;
}

.site-card-arrow {
    margin-left: auto;
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: var(--rosy-granite);
    transition: transform 0.2s, color 0.2s;
    align-self: flex-end;
}

.site-card:hover .site-card-arrow {
    transform: translate(3px, -3px);
    color: var(--pacific-cyan);
}

.category-section.hidden { display: none; }


/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */

@media (max-width: 992px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual {
        margin-top: 3rem;
        transform: scale(0.8);
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .btn-secondary {
        margin-left: 0;
        margin-top: 1rem;
        display: block;
    }
}

@media (max-width: 768px) {
    nav { padding: 1rem 5%; }

    .hamburger-btn { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background: var(--white);
        box-shadow: 0 8px 24px rgba(0,0,0,0.08);
        z-index: 999;
        padding: 0.5rem 0;
    }

    .nav-links li { width: 100%; }

    .nav-links a {
        display: block;
        padding: 0.9rem 5%;
        border-bottom: 1px solid #f0f0f0;
        font-size: 0.95rem;
    }

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

    .logo { font-size: 1.4rem; }

    /* Index */
    .hero { padding: 3rem 5%; }
    .hero-text h1 { font-size: 2rem; }
    .section-padding { padding: 3rem 5%; }
    .final-cta { padding: 4rem 5%; }
    .final-cta h2 { font-size: 1.8rem; }

    /* Favourites */
    .page-header { padding: 3rem 5% 2rem; }
    .page-header h1 { font-size: 2rem; }
    .filter-bar { padding: 1rem 5%; top: 65px; }
    .content { padding: 2rem 5% 4rem; }
}

@media (max-width: 480px) {
    .logo { font-size: 1.4rem; }
    .nav-links { display: none; }
}