/* ==========================================================
   Dravenlock Software - Main stylesheet
   Donker zilver-op-antraciet thema, mobile-first responsive
   WCAG AAA contrast (16:1+ op tekst)
   ========================================================== */

:root {
    /* Achtergronden */
    --bg-app:        #111114;
    --bg-card:       #1a1a20;
    --bg-card-hover: #21212a;
    --bg-input:      #0a0a0c;

    /* Tekst */
    --text:          #e8eaef;
    --text-dim:      #a0a4ad;
    --text-muted:    #6e7079;
    --text-on-acc:   #111114;

    /* Accent (Dravenlock zilver) */
    --accent:        #c0c8d4;
    --accent-hover:  #d4dae3;
    --accent-pressed:#a8b0bc;
    --accent-dim:    #383a42;

    /* Borders */
    --border:        #2a2a32;
    --border-focus:  #c0c8d4;

    /* Status */
    --success:       #5ad988;
    --error:         #ff7a6f;

    /* Spacing / sizing */
    --max-width:     1200px;
    --nav-height:    72px;

    /* Typography */
    --font-display:  'JetBrains Mono', 'Consolas', 'Courier New', monospace;
    --font-body:     Georgia, 'Times New Roman', serif;
    --font-ui:       -apple-system, BlinkMacSystemFont, 'Segoe UI',
                     Roboto, Oxygen, Ubuntu, sans-serif;
}

/* === Reset / globals === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    background: var(--bg-app);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Subtiele scan-line achtergrond op hele site */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: repeating-linear-gradient(
        0deg,
        transparent 0,
        transparent 2px,
        rgba(192, 200, 212, 0.010) 2px,
        rgba(192, 200, 212, 0.010) 3px
    );
    pointer-events: none;
    z-index: 1;
}

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

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}
a:hover { color: var(--accent-hover); }
a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 2px;
}

/* === Containers === */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

/* === Skip link (a11y) === */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--accent);
    color: var(--text-on-acc);
    padding: 8px 16px;
    z-index: 1000;
    font-family: var(--font-ui);
    font-weight: 600;
}
.skip-link:focus { top: 0; }

/* === Navigatie === */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(17, 17, 20, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    height: var(--nav-height);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 0.3px;
}

.nav-brand img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-display);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    padding: 8px 0;
    position: relative;
    transition: color 0.2s;
}

.nav-links a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}

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

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

.lang-switch {
    display: flex;
    gap: 4px;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 3px;
    background: var(--bg-card);
}

.lang-btn {
    background: transparent;
    color: var(--text-dim);
    border: none;
    padding: 5px 11px;
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 1px;
    cursor: pointer;
    border-radius: 16px;
    transition: all 0.25s ease;
}

.lang-btn:hover { color: var(--text); }

.lang-btn.active {
    background: var(--accent);
    color: var(--text-on-acc);
    font-weight: 700;
}

/* Mobile menu burger */
.nav-burger {
    display: none;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}

.nav-burger span {
    display: block;
    height: 2px;
    background: var(--text);
    width: 100%;
    transition: all 0.3s;
}

.nav-burger.open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* === Hero === */
.hero {
    position: relative;
    min-height: calc(100vh - var(--nav-height));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 24px 60px;
    overflow: hidden;
}

/* Achtergrond gradient + vignet */
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at top, rgba(192, 200, 212, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at bottom, rgba(192, 200, 212, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 760px;
    width: 100%;
}

.hero-logo {
    width: 140px;
    height: 140px;
    margin: 0 auto 32px;
    animation: fade-up 1s 0.1s both ease-out;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 7vw, 4.5rem);
    font-weight: 700;
    letter-spacing: 1px;
    line-height: 1.1;
    color: var(--text);
    margin-bottom: 18px;
    animation: fade-up 1s 0.3s both ease-out;
}

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

.hero-subtitle {
    font-size: clamp(1.05rem, 2.2vw, 1.3rem);
    color: var(--text-dim);
    margin-bottom: 12px;
    animation: fade-up 1s 0.5s both ease-out;
    font-style: italic;
}

.hero-subtitle .heart {
    color: var(--accent);
    font-style: normal;
    display: inline-block;
    animation: heart-beat 1.8s ease-in-out infinite;
}

@keyframes heart-beat {
    0%, 100% { transform: scale(1); }
    20% { transform: scale(1.15); }
    40% { transform: scale(1); }
    60% { transform: scale(1.1); }
}

.hero-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent);
    padding: 8px 18px;
    border: 1px solid var(--accent-dim);
    border-radius: 30px;
    margin-bottom: 40px;
    animation: fade-up 1s 0.7s both ease-out;
}

.cta-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fade-up 1s 0.9s both ease-out;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-ui);
    font-size: 15px;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent);
    color: var(--text-on-acc);
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--text-on-acc);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(192, 200, 212, 0.15);
}

.btn-primary:active {
    transform: translateY(0);
    background: var(--accent-pressed);
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-outline:hover {
    background: var(--accent-dim);
    color: var(--text);
    border-color: var(--accent-hover);
}

.btn-icon {
    width: 18px;
    height: 18px;
    transition: transform 0.25s ease;
}

.btn:hover .btn-icon { transform: translateX(3px); }

/* === Sections === */
section {
    padding: 100px 0;
    position: relative;
    z-index: 2;
}

section.alt-bg {
    background: linear-gradient(180deg, transparent 0%, var(--bg-card) 50%, transparent 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--accent);
    margin-bottom: 14px;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.section-header p {
    color: var(--text-dim);
    font-size: 1.05rem;
    max-width: 620px;
    margin: 0 auto;
}

/* === Over Dravenlock === */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
    margin-top: 20px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px 28px;
    transition: all 0.35s ease;
}

.about-card:hover {
    border-color: var(--accent-dim);
    transform: translateY(-4px);
}

.about-card-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-app);
    border: 1px solid var(--accent-dim);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent);
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
}

.about-card h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--text);
    margin-bottom: 12px;
    letter-spacing: 0.3px;
}

.about-card p {
    color: var(--text-dim);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* === Downloads === */
.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.download-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.download-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-dim), transparent);
    opacity: 0;
    transition: opacity 0.35s;
}

.download-card:hover {
    border-color: var(--accent-dim);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

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

.download-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}

.download-card-icon {
    width: 52px;
    height: 52px;
    background: var(--bg-app);
    border: 1px solid var(--accent-dim);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    flex-shrink: 0;
}

.download-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--text);
    letter-spacing: 0.3px;
}

.download-card .tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--accent);
    padding: 3px 9px;
    border: 1px solid var(--accent-dim);
    border-radius: 10px;
    margin-top: 4px;
}

.download-card p {
    color: var(--text-dim);
    font-size: 0.93rem;
    line-height: 1.65;
    margin-bottom: 24px;
    flex-grow: 1;
}

.download-card .btn {
    width: 100%;
    justify-content: center;
    font-size: 14px;
    padding: 12px 22px;
}


/* === Downloads: categorieën (v1.7) === */
.dl-catnav { display:flex; flex-wrap:wrap; gap:10px; justify-content:center; margin:0 0 8px; }
.dl-catnav a { font-family:var(--font-display); font-size:13px; letter-spacing:1px; color:var(--accent);
    border:1px solid var(--accent-dim); border-radius:20px; padding:7px 14px; text-decoration:none; }
.dl-catnav a:hover, .dl-catnav a:focus-visible { background:var(--bg-card-hover); border-color:var(--accent); }
.dl-cat { font-family:var(--font-display); font-size:1.35rem; color:var(--text); letter-spacing:1px;
    margin:48px 0 18px; padding-bottom:8px; border-bottom:1px solid var(--border); scroll-margin-top:calc(var(--nav-height) + 16px); }
.download-card .dl-src { display:block; text-align:center; margin-top:12px; font-size:0.88rem; color:var(--text-dim); }
.download-card a.dl-src { color:var(--accent); text-decoration:underline; text-underline-offset:3px; }
.download-card a.dl-src:hover { color:var(--accent-hover); }
.download-card a.dl-src.dl-video { font-weight:700; font-size:1rem; margin-top:8px; }

.download-card .dl-shot { display:block; width:calc(100% + 56px); max-width:none; margin:-32px -28px 20px; aspect-ratio:16/10;
    object-fit:cover; object-position:top left; border-bottom:1px solid var(--border); background:#0a0a0c; }

.download-card .dl-leeg { display:flex; align-items:center; justify-content:center; }
.download-card .dl-leeg img { width:72px; height:72px; opacity:.35; }

/* === Contact === */
.contact-wrapper {
    max-width: 620px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 40px 36px;
}

.form-row {
    margin-bottom: 22px;
}

.form-row label {
    display: block;
    font-family: var(--font-ui);
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}

.form-row input,
.form-row textarea {
    width: 100%;
    background: var(--bg-input);
    color: var(--text);
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    font-family: var(--font-ui);
    font-size: 15px;
    line-height: 1.5;
    transition: border-color 0.2s;
}

.form-row input:focus,
.form-row textarea:focus {
    outline: none;
    border-color: var(--border-focus);
}

/* Veld met validatie-fout: rode rand + subtiele shake */
.form-row input.field-invalid,
.form-row textarea.field-invalid {
    border-color: var(--error);
    animation: shake 0.4s ease-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-5px); }
    75%      { transform: translateX(5px); }
}

.form-row textarea {
    min-height: 140px;
    resize: vertical;
    font-family: var(--font-ui);
}

/* Honeypot: verberg het echte veld voor mensen, bots vullen 'm in */
.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.form-status {
    min-height: 24px;
    margin-top: 12px;
    font-size: 14px;
    text-align: center;
}

.form-status.success { color: var(--success); }
.form-status.error { color: var(--error); }

.form-submit {
    width: 100%;
    margin-top: 8px;
    justify-content: center;
}

.form-submit:disabled {
    background: var(--border);
    color: var(--text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* === Footer === */
.footer {
    border-top: 1px solid var(--border);
    padding: 50px 24px 30px;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
    position: relative;
    z-index: 2;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    list-style: none;
}

.footer-links a {
    color: var(--text-dim);
    font-family: var(--font-display);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: color 0.2s;
}

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

.footer-mark {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
}

.footer-mark .heart {
    color: var(--accent);
    display: inline-block;
}

/* === Scroll-triggered animaties === */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@keyframes fade-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* === Modals === */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    animation: fade-in 0.3s ease-out;
}

.modal-overlay.open {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    max-width: 720px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 40px;
    position: relative;
    animation: fade-up 0.4s ease-out;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--accent-dim);
    border-color: var(--accent);
}

.modal h2 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    color: var(--text);
    margin-bottom: 20px;
    letter-spacing: 0.3px;
}

.modal h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    color: var(--accent);
    margin: 22px 0 10px;
    letter-spacing: 0.3px;
}

.modal p, .modal li {
    color: var(--text);
    margin-bottom: 12px;
    font-size: 0.97rem;
    line-height: 1.7;
}

.modal ul, .modal ol {
    padding-left: 24px;
    margin-bottom: 12px;
}

/* === Mobile === */
@media (max-width: 880px) {
    .nav-burger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg-app);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        gap: 0;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
    }

    .nav-links.open {
        max-height: 500px;
    }

    .nav-links li {
        width: 100%;
        border-bottom: 1px solid var(--border);
    }

    .nav-links li:last-child {
        border-bottom: none;
        padding: 16px 24px;
    }

    .nav-links a {
        display: block;
        padding: 18px 24px;
        font-size: 14px;
    }

    .nav-links a::after { display: none; }

    section { padding: 70px 0; }

    .contact-wrapper {
        padding: 28px 22px;
    }

    .modal {
        padding: 28px 22px;
    }
}

@media (max-width: 480px) {
    .hero-logo { width: 110px; height: 110px; }
    .cta-group { flex-direction: column; align-items: stretch; }
    .cta-group .btn { justify-content: center; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01s !important;
        scroll-behavior: auto !important;
    }
}