/* =====================================================================
   COLITU FINANCE — main.css
   Modern dark SaaS admin teması (Remnawave / Happ esintili)
   ===================================================================== */

:root {
    /* Renk paleti */
    --bg-0:            #060a14;
    --bg-1:            #0a0f1c;
    --bg-2:            #0f1626;
    --bg-3:            #131c31;
    --surface:         rgba(20, 28, 50, 0.72);
    --surface-solid:   #141c32;
    --surface-hover:   rgba(30, 40, 68, 0.85);
    --border:          rgba(255, 255, 255, 0.06);
    --border-strong:   rgba(255, 255, 255, 0.12);
    --grid-line:       rgba(255, 255, 255, 0.025);

    --text-0:          #ffffff;
    --text-1:          #e6e9f2;
    --text-2:          #9aa3bf;
    --text-3:          #6b7290;
    --text-dim:        #4a5070;

    /* Accent — soft neon */
    --accent:          #00d4aa;
    --accent-2:        #14f195;
    --accent-glow:     rgba(0, 212, 170, 0.35);
    --primary:         #5b8cff;
    --primary-2:       #6ba6ff;
    --primary-glow:    rgba(91, 140, 255, 0.35);
    --purple:          #a855f7;
    --purple-glow:     rgba(168, 85, 247, 0.3);

    --success:         #10d39b;
    --warning:         #ffb547;
    --danger:          #ff5c7a;
    --info:            #5bb9ff;

    --shadow-sm:       0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md:       0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg:       0 20px 48px rgba(0, 0, 0, 0.45);
    --shadow-glow:     0 0 24px var(--accent-glow);

    --radius-sm:       8px;
    --radius:          12px;
    --radius-lg:       16px;
    --radius-xl:       22px;

    --sidebar-w:       260px;
    --navbar-h:        64px;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, Menlo, Consolas, monospace;
}

/* =========================== RESET ================================= */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-1);
    background: var(--bg-0);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Gradient + grid arka plan */
body::before {
    content: "";
    position: fixed; inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%,
            rgba(91, 140, 255, 0.15), transparent 60%),
        radial-gradient(ellipse 60% 50% at 100% 100%,
            rgba(0, 212, 170, 0.08), transparent 60%),
        radial-gradient(ellipse 60% 40% at 0% 100%,
            rgba(168, 85, 247, 0.07), transparent 60%),
        linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%);
    z-index: -2;
}
body::after {
    content: "";
    position: fixed; inset: 0;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 48px 48px;
    z-index: -1;
    pointer-events: none;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 30%, black, transparent 70%);
}

a { color: var(--primary-2); text-decoration: none; }
a:hover { color: var(--accent); }

h1, h2, h3, h4, h5 {
    color: var(--text-0);
    font-weight: 600;
    margin: 0 0 .5rem;
    letter-spacing: -0.01em;
}

::selection { background: var(--accent-glow); color: var(--text-0); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb {
    background: var(--bg-3);
    border-radius: 10px;
    border: 2px solid var(--bg-1);
}
::-webkit-scrollbar-thumb:hover { background: #22304d; }

/* ====================== LAYOUT =================================== */
.app-shell {
    display: grid;
    grid-template-columns: var(--sidebar-w) 1fr;
    min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    background: linear-gradient(180deg, rgba(15, 22, 38, 0.9), rgba(10, 15, 28, 0.95));
    border-right: 1px solid var(--border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    z-index: 20;
}
.sidebar__brand {
    display: flex; align-items: center; gap: .7rem;
    padding: 1.2rem 1.4rem;
    border-bottom: 1px solid var(--border);
}
.sidebar__logo {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
    display: grid; place-items: center;
    color: #06141f; font-weight: 800; font-size: 17px;
    box-shadow: 0 4px 14px var(--accent-glow);
}
.sidebar__brand-text {
    font-size: 15px; font-weight: 700; color: var(--text-0);
    letter-spacing: -0.01em;
    line-height: 1.1;
}
.sidebar__brand-text small {
    display: block;
    font-size: 10.5px; font-weight: 500;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.sidebar__section-label {
    padding: 1.1rem 1.5rem .4rem;
    font-size: 10.5px; font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.sidebar__nav {
    list-style: none; padding: 0 .8rem; margin: 0;
    flex: 1; overflow-y: auto;
}
.sidebar__nav li { margin-bottom: 2px; }
.sidebar__nav a {
    display: flex; align-items: center; gap: .75rem;
    padding: .7rem .85rem;
    color: var(--text-2);
    border-radius: var(--radius-sm);
    font-size: 13.5px; font-weight: 500;
    transition: all .15s ease;
    position: relative;
}
.sidebar__nav a i { font-size: 16px; width: 20px; }
.sidebar__nav a:hover {
    background: var(--surface-hover);
    color: var(--text-0);
}
.sidebar__nav a.active {
    background: linear-gradient(135deg, rgba(91,140,255,.18), rgba(0,212,170,.10));
    color: var(--text-0);
    box-shadow: inset 0 0 0 1px var(--border-strong);
}
.sidebar__nav a.active::before {
    content: '';
    position: absolute; left: -0.8rem; top: 20%; bottom: 20%;
    width: 3px;
    background: linear-gradient(180deg, var(--accent), var(--primary));
    border-radius: 0 3px 3px 0;
}

.sidebar__footer {
    padding: 1rem 1.4rem;
    border-top: 1px solid var(--border);
    font-size: 11.5px;
    color: var(--text-3);
}

/* ---- Navbar ---- */
.navbar {
    position: sticky; top: 0;
    height: var(--navbar-h);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 1.6rem;
    background: rgba(10, 15, 28, 0.65);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    z-index: 15;
}
.navbar__left { display: flex; align-items: center; gap: 1rem; }
.navbar__title { font-size: 17px; font-weight: 600; color: var(--text-0); margin: 0; }
.navbar__right { display: flex; align-items: center; gap: .8rem; }

.navbar__btn {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-2);
    display: grid; place-items: center;
    cursor: pointer;
    transition: all .15s ease;
    position: relative;
}
.navbar__btn:hover {
    color: var(--text-0);
    border-color: var(--border-strong);
    background: var(--surface-hover);
}
.navbar__btn i { font-size: 16px; }
.navbar__btn .dot {
    position: absolute; top: 9px; right: 9px;
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--danger);
    box-shadow: 0 0 8px var(--danger);
}

.user-chip {
    display: flex; align-items: center; gap: .6rem;
    padding: .45rem .8rem .45rem .5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    cursor: pointer;
}
.user-chip:hover { border-color: var(--border-strong); }
.user-chip__avatar {
    width: 28px; height: 28px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: grid; place-items: center;
    font-size: 12px; font-weight: 700; color: #06141f;
}
.user-chip__name { font-size: 13px; color: var(--text-1); font-weight: 500; }

/* ---- Main ---- */
.main {
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.content {
    padding: 1.6rem 1.8rem 3rem;
    max-width: 100%;
}
.page-header {
    display: flex; justify-content: space-between; align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.4rem;
    flex-wrap: wrap;
}
.page-title { font-size: 22px; font-weight: 700; margin: 0 0 .25rem; color: var(--text-0); }
.page-sub { color: var(--text-3); font-size: 13px; margin: 0; }

/* ========================= CARDS ================================== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.4rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute; inset: 0; pointer-events: none;
    border-radius: inherit;
    background: linear-gradient(135deg,
        rgba(255,255,255,.03) 0%,
        rgba(255,255,255,0) 30%);
}

.card-header {
    display: flex; justify-content: space-between; align-items: center;
    gap: 1rem;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}
.card-header h2, .card-header h3 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
}
.card-header small { color: var(--text-3); font-size: 12px; }

/* Stat Card */
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.3rem 1.4rem;
    position: relative;
    overflow: hidden;
    transition: transform .2s ease, border-color .2s ease;
}
.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-strong);
}
.stat-card__icon {
    width: 42px; height: 42px;
    border-radius: 12px;
    display: grid; place-items: center;
    margin-bottom: 1rem;
    font-size: 19px;
    background: linear-gradient(135deg, rgba(91,140,255,.18), rgba(0,212,170,.10));
    color: var(--primary-2);
    border: 1px solid var(--border);
}
.stat-card--success .stat-card__icon {
    background: linear-gradient(135deg, rgba(16,211,155,.18), rgba(0,212,170,.1));
    color: var(--accent-2);
}
.stat-card--warning .stat-card__icon {
    background: linear-gradient(135deg, rgba(255,181,71,.2), rgba(255,181,71,.05));
    color: var(--warning);
}
.stat-card--danger .stat-card__icon {
    background: linear-gradient(135deg, rgba(255,92,122,.22), rgba(255,92,122,.05));
    color: var(--danger);
}
.stat-card--purple .stat-card__icon {
    background: linear-gradient(135deg, rgba(168,85,247,.22), rgba(168,85,247,.08));
    color: var(--purple);
}
.stat-card__label {
    font-size: 12px; color: var(--text-3);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: .3rem;
}
.stat-card__value {
    font-size: 26px; font-weight: 700; color: var(--text-0);
    font-feature-settings: "tnum";
    letter-spacing: -0.02em;
    margin-bottom: .1rem;
}
.stat-card__delta {
    font-size: 11.5px; color: var(--text-3);
    display: flex; align-items: center; gap: .3rem;
}
.stat-card__delta.up    { color: var(--success); }
.stat-card__delta.down  { color: var(--danger); }

/* ======================== FORMS =================================== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.1rem;
}
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group--full { grid-column: 1 / -1; }

.form-label {
    font-size: 12.5px;
    color: var(--text-2);
    font-weight: 500;
    display: flex; justify-content: space-between; gap: .5rem;
}
.form-label .muted { color: var(--text-3); font-weight: 400; font-size: 11.5px; }

.form-control, .form-select, textarea.form-control {
    width: 100%;
    padding: .7rem .9rem;
    background: rgba(10, 15, 28, .5);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-0);
    font-size: 14px;
    font-family: inherit;
    transition: border-color .15s ease, box-shadow .15s ease;
    outline: none;
}
.form-control:focus, .form-select:focus, textarea.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: rgba(10, 15, 28, .7);
}
.form-control::placeholder { color: var(--text-dim); }
textarea.form-control { resize: vertical; min-height: 88px; }
.form-help { font-size: 11.5px; color: var(--text-3); }
.form-error { font-size: 12px; color: var(--danger); }

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%239aa3bf' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 2.4rem;
}

.input-group {
    display: flex;
    border-radius: 10px;
    background: rgba(10, 15, 28, .5);
    border: 1px solid var(--border);
    overflow: hidden;
}
.input-group:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.input-group .form-control {
    border: none; background: transparent;
    border-radius: 0;
}
.input-group .form-control:focus { box-shadow: none; background: transparent; }
.input-group-text {
    display: flex; align-items: center;
    padding: 0 .9rem;
    color: var(--text-3);
    font-size: 13px;
    background: rgba(255,255,255,.02);
    border-left: 1px solid var(--border);
}
.input-group-text:first-child {
    border-left: none;
    border-right: 1px solid var(--border);
}

.form-check {
    display: flex; align-items: center; gap: .55rem;
    cursor: pointer;
    user-select: none;
}
.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    appearance: none;
    width: 18px; height: 18px;
    border: 1px solid var(--border-strong);
    border-radius: 5px;
    background: rgba(10, 15, 28, .5);
    cursor: pointer;
    transition: all .15s ease;
    position: relative;
}
.form-check input[type="radio"] { border-radius: 50%; }
.form-check input:checked {
    background: linear-gradient(135deg, var(--accent), var(--primary));
    border-color: transparent;
}
.form-check input[type="checkbox"]:checked::after {
    content: '';
    position: absolute; left: 5px; top: 1px;
    width: 5px; height: 10px;
    border: solid #06141f;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}
.form-check input[type="radio"]:checked::after {
    content: '';
    position: absolute; left: 4px; top: 4px;
    width: 8px; height: 8px; border-radius: 50%;
    background: #06141f;
}

/* ========================= BUTTONS ================================ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
    padding: .65rem 1.1rem;
    border-radius: 10px;
    border: 1px solid transparent;
    font-size: 13.5px; font-weight: 500;
    cursor: pointer;
    transition: all .15s ease;
    background: transparent; color: var(--text-1);
    text-decoration: none;
    line-height: 1;
    font-family: inherit;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn i { font-size: 15px; }

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: #06141f;
    font-weight: 600;
    box-shadow: 0 4px 14px var(--primary-glow);
}
.btn-primary:hover {
    filter: brightness(1.1);
    box-shadow: 0 6px 20px var(--primary-glow);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text-1);
}
.btn-secondary:hover {
    background: var(--surface-hover);
    border-color: var(--border-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--text-2);
}
.btn-ghost:hover { background: var(--surface); color: var(--text-0); }

.btn-danger {
    background: rgba(255, 92, 122, .14);
    border-color: rgba(255, 92, 122, .3);
    color: var(--danger);
}
.btn-danger:hover {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

.btn-success {
    background: rgba(16, 211, 155, .12);
    border-color: rgba(16, 211, 155, .3);
    color: var(--success);
}
.btn-success:hover {
    background: var(--success);
    color: #06141f;
    border-color: var(--success);
}

.btn-sm { padding: .4rem .7rem; font-size: 12px; border-radius: 8px; }
.btn-lg { padding: .85rem 1.5rem; font-size: 15px; border-radius: 12px; }
.btn-icon { padding: .55rem; width: 36px; height: 36px; }

.btn-group { display: inline-flex; gap: .4rem; }

/* ========================= BADGES ================================= */
.badge {
    display: inline-flex; align-items: center; gap: .3rem;
    padding: .25rem .6rem;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .03em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--border);
    color: var(--text-2);
}
.badge-active {
    background: rgba(16, 211, 155, .12);
    color: var(--success);
    border-color: rgba(16, 211, 155, .3);
}
.badge-active::before {
    content: '';
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}
.badge-expired {
    background: rgba(255, 92, 122, .14);
    color: var(--danger);
    border-color: rgba(255, 92, 122, .3);
}
.badge-warning {
    background: rgba(255, 181, 71, .15);
    color: var(--warning);
    border-color: rgba(255, 181, 71, .3);
}
.badge-caution {
    background: rgba(255, 181, 71, .10);
    color: #ffd48a;
    border-color: rgba(255, 181, 71, .2);
}
.badge-info {
    background: rgba(91, 185, 255, .12);
    color: var(--info);
    border-color: rgba(91, 185, 255, .3);
}
.badge-purple {
    background: rgba(168, 85, 247, .15);
    color: #c084fc;
    border-color: rgba(168, 85, 247, .3);
}

/* ========================= TABLES ================================= */
.table-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(12px);
}
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}
.table thead th {
    background: rgba(255, 255, 255, .02);
    padding: .9rem 1rem;
    text-align: left;
    color: var(--text-3);
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.table tbody td {
    padding: .9rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-1);
    vertical-align: middle;
}
.table tbody tr { transition: background .12s ease; }
.table tbody tr:hover { background: rgba(255, 255, 255, .02); }
.table tbody tr:last-child td { border-bottom: none; }

.table td .muted { color: var(--text-3); font-size: 12px; }
.table td strong { color: var(--text-0); font-weight: 600; }

/* ====================== ALERTS / FLASH ============================ */
.alert {
    padding: .85rem 1.1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--surface);
    display: flex; align-items: center; gap: .7rem;
    margin-bottom: 1.2rem;
    font-size: 13.5px;
}
.alert i { font-size: 18px; }
.alert-success {
    border-color: rgba(16, 211, 155, .3);
    background: rgba(16, 211, 155, .07);
    color: var(--success);
}
.alert-error, .alert-danger {
    border-color: rgba(255, 92, 122, .3);
    background: rgba(255, 92, 122, .07);
    color: var(--danger);
}
.alert-warning {
    border-color: rgba(255, 181, 71, .3);
    background: rgba(255, 181, 71, .07);
    color: var(--warning);
}

/* ====================== MOBILE  =================================== */
.mobile-menu-btn { display: none; }

@media (max-width: 1024px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar {
        position: fixed;
        left: calc(-1 * var(--sidebar-w) - 4px);
        top: 0;
        width: var(--sidebar-w);
        transition: left .25s ease;
        box-shadow: var(--shadow-lg);
    }
    .sidebar.is-open { left: 0; }
    .mobile-menu-btn { display: grid; }
    .content { padding: 1.2rem 1rem 2rem; }
}
@media (max-width: 640px) {
    .navbar { padding: 0 .9rem; }
    .navbar__title { font-size: 15px; }
    .user-chip__name { display: none; }
    .stat-card__value { font-size: 22px; }
    .form-grid { grid-template-columns: 1fr; }
}

.sidebar-backdrop {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0, 0, 0, .5);
    z-index: 19;
    backdrop-filter: blur(4px);
}
.sidebar-backdrop.is-open { display: block; }