/* ═══════════════════════════════════════════
   DEÜ YBS — Unified Design System v4
   White Background + #012447 Accent
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800;900&display=swap');

:root {
    /* ── Core palette ── */
    --c-primary:    #012447;
    --c-primary-mid:#0a1e30;
    --c-primary-light:#122d45;
    --c-primary-deep:#020a12;
    --c-accent:     #012447;
    --c-accent-light:#0a1e30;
    --c-accent-dim: rgba(3,14,26,0.08);
    --c-white:      #ffffff;
    --c-bg:         #ffffff;
    --c-surface:    #ffffff;
    --c-text:       #1a1a2e;
    --c-text-soft:  #5a6275;
    --c-text-muted: #8994a8;
    --c-border:     #e2e6ed;
    --c-success:    #10b981;
    --c-danger:     #ef4444;
    --c-blue:       #3b82f6;

    /* ── Spacing & sizing ── */
    --radius-sm:  8px;
    --radius-md:  14px;
    --radius-lg:  20px;
    --radius-xl:  28px;

    /* ── Shadows ── */
    --shadow-sm:  0 2px 8px rgba(3,14,26,0.06);
    --shadow-md:  0 8px 24px rgba(3,14,26,0.08);
    --shadow-lg:  0 16px 48px rgba(3,14,26,0.12);
    --shadow-xl:  0 24px 64px rgba(3,14,26,0.16);

    /* ── Transitions ── */
    --ease-out:   cubic-bezier(.4,0,.2,1);
    --transition: all 0.35s var(--ease-out);
}

/* ── Reset ── */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--c-text);
    line-height: 1.7;
    background: var(--c-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width:100%; display: block; }
a { text-decoration:none; color:inherit; }
::selection { background: #012447; color: #ffffff; }

/* ═══════════════════════════════
   NAVBAR
   ═══════════════════════════════ */
.site-nav {
    background: var(--c-primary);
    padding: 0 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    height: 68px;
    box-shadow: 0 2px 20px rgba(3,14,26,0.25);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.site-nav .logo-area {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
}

.site-nav .logo-area img {
    height: 42px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.site-nav .logo-area h1 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--c-white);
    letter-spacing: 0.3px;
}

.site-nav .nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
}

.site-nav .nav-links a {
    color: rgba(255,255,255,0.7);
    font-weight: 500;
    font-size: 0.88rem;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.site-nav .nav-links a:hover,
.site-nav .nav-links a.active-link {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

/* CTA button in nav */
.nav-btn-cta {
    background: #ffffff !important;
    color: var(--c-primary) !important;
    font-weight: 700 !important;
    padding: 9px 20px !important;
    border-radius: var(--radius-sm) !important;
    box-shadow: 0 3px 12px rgba(3,14,26,0.2);
    transition: var(--transition) !important;
}

.nav-btn-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(3,14,26,0.35) !important;
}

/* Dropdown */
.dropdown { position: relative; }
.dropdown-content {
    display: none;
    position: absolute;
    background: var(--c-surface);
    min-width: 220px;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: var(--shadow-xl);
    border-radius: var(--radius-md);
    padding: 6px;
    padding-top: 12px;
    border: 1px solid var(--c-border);
    z-index: 100;
    animation: dropdownIn 0.2s var(--ease-out);
}

/* Invisible bridge to prevent gap hover loss */
.dropdown-content::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 0;
    right: 0;
    height: 12px;
}

@keyframes dropdownIn {
    from { opacity: 0; transform: translateX(-50%) translateY(-6px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.dropdown:hover .dropdown-content { display: block; }
.dropdown-content a {
    display: block;
    color: var(--c-text) !important;
    padding: 10px 14px !important;
    font-size: 0.85rem !important;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
    font-weight: 500 !important;
}
.dropdown-content a:hover {
    background: #f5f7fa !important;
    color: var(--c-primary) !important;
}

/* ═══════════════════════════════
   HERO
   ═══════════════════════════════ */
.page-hero {
    background: linear-gradient(145deg, var(--c-primary) 0%, var(--c-primary-mid) 60%, var(--c-primary-light) 100%);
    color: var(--c-white);
    padding: 80px 10% 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background:
        radial-gradient(ellipse at 30% 40%, rgba(255,255,255,0.04) 0%, transparent 55%),
        radial-gradient(ellipse at 70% 60%, rgba(255,255,255,0.03) 0%, transparent 55%);
    animation: heroFloat 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes heroFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33%      { transform: translate(25px, -20px) rotate(2deg); }
    66%      { transform: translate(-15px, 15px) rotate(-1deg); }
}

.page-hero::after {
    content: '';
    position: absolute;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 65%);
    top: -200px; right: -100px;
    border-radius: 50%;
    pointer-events: none;
}

.page-hero h2 {
    font-size: 2.6rem;
    font-weight: 800;
    margin-bottom: 12px;
    position: relative;
    letter-spacing: -0.02em;
}

.page-hero h2 i { color: rgba(255,255,255,0.7); margin-right: 10px; }

.page-hero h2 span {
    color: rgba(255,255,255,0.85);
    -webkit-text-fill-color: unset;
}

.page-hero p {
    opacity: .7;
    font-size: 1.05rem;
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

/* ═══════════════════════════════
   SECTION HEADERS
   ═══════════════════════════════ */
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h3 { font-size: 2rem; font-weight: 800; color: var(--c-primary); }
.section-header .accent-line {
    width: 50px; height: 3px;
    background: var(--c-primary);
    margin: 14px auto 0;
    border-radius: 3px;
}
.section-header p { color: var(--c-text-soft); margin-top: 12px; font-size: 0.95rem; }

.section-badge {
    display: inline-block;
    background: var(--c-accent-dim);
    color: var(--c-primary);
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
    border: 1px solid rgba(3,14,26,0.15);
}

/* ═══════════════════════════════
   CARDS
   ═══════════════════════════════ */
.card {
    background: var(--c-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--c-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
}
.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

/* ═══════════════════════════════
   FOOTER
   ═══════════════════════════════ */
.site-footer {
    background: #012447;
    color: rgba(255,255,255,0.55);
    padding: 50px 10% 24px;
    position: relative;
}
.site-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent 10%, rgba(255,255,255,0.2) 50%, transparent 90%);
}
.site-footer .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 36px;
}
.site-footer .footer-grid h4 {
    color: #ffffff;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 14px;
}
.site-footer .footer-grid p,
.site-footer .footer-grid a {
    font-size: 0.85rem;
    line-height: 2;
    display: block;
    transition: color 0.2s;
}
.site-footer .footer-grid a:hover { color: #fff; }
.site-footer .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 18px;
    text-align: center;
    font-size: 0.78rem;
}

/* ═══════════════════════════════
   BUTTONS
   ═══════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}
.btn-primary {
    background: var(--c-primary);
    color: #ffffff;
    box-shadow: 0 3px 10px rgba(3,14,26,0.2);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(3,14,26,0.35);
}

/* ═══════════════════════════════
   MODALS
   ═══════════════════════════════ */
.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(3,14,26,0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    padding: 20px;
    overflow-y: auto;
}

.modal-box {
    background: var(--c-surface);
    padding: 40px;
    border-radius: var(--radius-xl);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.35s var(--ease-out);
}

@keyframes modalSlideIn {
    from { transform: translateY(30px) scale(0.96); opacity: 0; }
    to   { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-box h2 {
    color: var(--c-primary);
    margin-bottom: 20px;
    font-size: 1.5rem;
    font-weight: 800;
}

.modal-close-btn {
    background: var(--c-primary);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.92rem;
    font-weight: 600;
    transition: var(--transition);
    font-family: inherit;
}
.modal-close-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(3,14,26,0.25);
}

/* ═══════════════════════════════
   HAMBURGER MENU
   ═══════════════════════════════ */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: #fff;
    margin: 5px 0;
    border-radius: 2px;
    transition: all 0.3s var(--ease-out);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ═══════════════════════════════
   RESPONSIVE
   ═══════════════════════════════ */
@media(max-width:768px) {
    /* ── Navbar ── */
    .site-nav {
        padding: 12px 4%;
        height: auto;
        flex-wrap: wrap;
        position: sticky;
        top: 0;
    }

    .nav-toggle { display: block; }

    .site-nav .nav-links {
        display: none !important;
        flex-direction: column;
        width: 100%;
        gap: 4px;
        padding: 16px 0 8px;
        border-top: 1px solid rgba(255,255,255,0.08);
        margin-top: 10px;
    }

    .site-nav .nav-links.active {
        display: flex !important;
    }

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

    .site-nav .nav-links a {
        display: block;
        padding: 12px 16px;
        width: 100%;
        text-align: center;
        font-size: 0.92rem;
    }

    .nav-btn-cta {
        text-align: center !important;
        margin-top: 4px;
    }

    /* ── Dropdown mobilde ── */
    .dropdown-content {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: rgba(255,255,255,0.05);
        border-radius: var(--radius-sm);
        margin-top: 4px;
        padding: 4px;
    }

    .dropdown-content a {
        color: rgba(255,255,255,0.7) !important;
        padding: 10px 14px !important;
    }

    .dropdown-content a:hover {
        background: rgba(255,255,255,0.08) !important;
        color: #fff !important;
    }

    .dropdown:hover .dropdown-content { display: none; }
    .dropdown.open .dropdown-content { display: block; }

    /* ── Logo ── */
    .site-nav .logo-area h1 {
        font-size: 0.78rem;
    }

    .site-nav .logo-area img {
        height: 34px;
    }

    /* ── Hero ── */
    .page-hero { padding: 50px 6%; }
    .page-hero h2 { font-size: 1.6rem; }
    .page-hero p { font-size: 0.9rem; }

    /* ── Footer ── */
    .site-footer { padding: 40px 5% 20px; }
    .site-footer .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        text-align: center;
    }

    /* ── Modal ── */
    .modal-box {
        padding: 24px;
        border-radius: var(--radius-lg);
        max-width: 100%;
    }

    .modal-overlay { padding: 12px; }
}

@media(max-width:480px) {
    .page-hero h2 { font-size: 1.35rem; }
    .page-hero { padding: 40px 5%; }
    .section-header h3 { font-size: 1.5rem; }
    .site-nav .logo-area h1 { font-size: 0.7rem; }
}

/* ═══════════════════════════════
   SCROLLBAR
   ═══════════════════════════════ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb { background: #b0b8c9; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-primary-light); }