/* ============================================================
   FIBER KEY V1 — Windows 11 Tarzı Modern Tasarım
   ============================================================ */

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

:root {
    --fk-bg: #0a0e1a;
    --fk-bg-soft: #0f1626;
    --fk-surface: rgba(22, 32, 51, 0.72);
    --fk-surface-2: rgba(30, 42, 64, 0.55);
    --fk-surface-3: rgba(40, 55, 82, 0.45);

    --fk-border: rgba(255, 255, 255, 0.08);
    --fk-border-strong: rgba(255, 255, 255, 0.14);

    --fk-text: #ffffff;
    --fk-text-soft: #b8c4d8;
    --fk-text-muted: #7d8ba3;

    --fk-accent: #4f8cff;
    --fk-accent-2: #6ea8ff;
    --fk-accent-glow: rgba(79, 140, 255, 0.35);

    --fk-success: #34d399;
    --fk-success-glow: rgba(52, 211, 153, 0.25);

    --fk-danger: #f87171;
    --fk-danger-glow: rgba(248, 113, 113, 0.25);

    --fk-warning: #fbbf24;

    --fk-radius-sm: 10px;
    --fk-radius: 14px;
    --fk-radius-lg: 20px;
    --fk-radius-xl: 28px;

    --fk-shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.25);
    --fk-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    --fk-shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.45);

    --fk-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

html,
body {
    width: 100%;
    min-height: 100%;
}

body {
    font-family:
        "Segoe UI Variable",
        "Segoe UI",
        system-ui,
        -apple-system,
        "Inter",
        Arial,
        sans-serif;

    color: var(--fk-text);
    background: var(--fk-bg);

    background-image:
        radial-gradient(ellipse 900px 600px at 15% 0%, rgba(79, 140, 255, 0.18), transparent 60%),
        radial-gradient(ellipse 800px 700px at 100% 100%, rgba(110, 168, 255, 0.12), transparent 60%),
        radial-gradient(ellipse 600px 500px at 50% 50%, rgba(52, 211, 153, 0.04), transparent 70%);

    background-attachment: fixed;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.55;
}


/* WRAPPER */

.fk-wrapper {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 40px 24px 60px;
}


/* HEADER */

.fk-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 28px;
    margin-bottom: 26px;
    background: var(--fk-surface);
    border: 1px solid var(--fk-border);
    border-radius: var(--fk-radius-xl);
    backdrop-filter: blur(28px) saturate(160%);
    -webkit-backdrop-filter: blur(28px) saturate(160%);
    box-shadow: var(--fk-shadow);
    position: relative;
    overflow: hidden;
}

.fk-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
    pointer-events: none;
}

.fk-logo {
    display: flex;
    align-items: center;
    gap: 16px;
}

.fk-logo-mark {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.5px;
    color: #ffffff;
    background: linear-gradient(135deg, #4f8cff 0%, #6ea8ff 60%, #8cc0ff 100%);
    box-shadow:
        0 10px 26px rgba(79, 140, 255, 0.42),
        inset 0 1px 1px rgba(255, 255, 255, 0.35),
        inset 0 -1px 2px rgba(0, 0, 0, 0.15);
    position: relative;
}

.fk-logo-mark::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 16px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.25) 0%, transparent 50%);
    pointer-events: none;
}

.fk-title {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--fk-text);
    line-height: 1.15;
}

.fk-subtitle {
    color: var(--fk-text-muted);
    font-size: 13px;
    margin-top: 3px;
    letter-spacing: 0.2px;
}

.fk-header-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--fk-text-soft);
    background: rgba(52, 211, 153, 0.08);
    border: 1px solid rgba(52, 211, 153, 0.22);
}

.fk-badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--fk-success);
    box-shadow: 0 0 10px var(--fk-success-glow);
    animation: fk-pulse 2s ease-in-out infinite;
}

@keyframes fk-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.55; transform: scale(0.85); }
}


/* GRID */

.fk-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}


/* CARD */

.fk-card {
    padding: 28px;
    background: var(--fk-surface);
    border: 1px solid var(--fk-border);
    border-radius: var(--fk-radius-xl);
    backdrop-filter: blur(28px) saturate(160%);
    -webkit-backdrop-filter: blur(28px) saturate(160%);
    box-shadow: var(--fk-shadow);
    position: relative;
    overflow: hidden;
    transition: border-color var(--fk-transition), transform var(--fk-transition);
}

.fk-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.14), transparent);
    pointer-events: none;
}

.fk-card:hover {
    border-color: var(--fk-border-strong);
}

.fk-card-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 22px;
}

.fk-card-icon {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    color: var(--fk-accent-2);
    background: linear-gradient(135deg, rgba(79, 140, 255, 0.18), rgba(110, 168, 255, 0.08));
    border: 1px solid rgba(79, 140, 255, 0.22);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.fk-card-icon svg {
    width: 22px;
    height: 22px;
}

.fk-card-icon-sm {
    width: 34px;
    height: 34px;
    border-radius: 10px;
}

.fk-card-icon-sm svg {
    width: 16px;
    height: 16px;
}

.fk-card-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--fk-text);
    letter-spacing: 0.2px;
    line-height: 1.3;
}

.fk-card-description {
    color: var(--fk-text-muted);
    font-size: 13px;
    margin-top: 4px;
    line-height: 1.55;
}


/* CODE BOX */

.fk-code-box {
    margin: 8px 0 20px;
    padding: 22px 20px;
    border-radius: var(--fk-radius-lg);
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.32), rgba(0, 0, 0, 0.20));
    border: 1px solid rgba(79, 140, 255, 0.20);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.fk-code-box::after {
    content: "";
    position: absolute;
    top: 0; left: 20%; right: 20%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(110, 168, 255, 0.55), transparent);
}

.fk-code-label {
    font-size: 11px;
    color: var(--fk-text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    font-weight: 600;
}

.fk-code {
    min-height: 62px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    font-weight: 800;
    letter-spacing: 10px;
    color: #ffffff;
    font-variant-numeric: tabular-nums;
    text-shadow:
        0 0 30px rgba(110, 168, 255, 0.55),
        0 0 60px rgba(79, 140, 255, 0.25);
    transition: color var(--fk-transition);
}


/* INPUT */

.fk-input-wrapper {
    margin-bottom: 18px;
}

.fk-input {
    width: 100%;
    height: 60px;
    padding: 0 20px;
    border-radius: var(--fk-radius);
    border: 1px solid var(--fk-border-strong);
    background: rgba(0, 0, 0, 0.30);
    color: var(--fk-text);
    outline: none;
    font-size: 26px;
    font-weight: 700;
    text-align: center;
    letter-spacing: 10px;
    font-variant-numeric: tabular-nums;
    transition:
        border-color var(--fk-transition),
        box-shadow var(--fk-transition),
        background var(--fk-transition);
}

.fk-input::placeholder {
    color: rgba(255, 255, 255, 0.18);
    letter-spacing: 10px;
}

.fk-input:hover {
    border-color: rgba(255, 255, 255, 0.20);
}

.fk-input:focus {
    border-color: var(--fk-accent);
    background: rgba(0, 0, 0, 0.40);
    box-shadow:
        0 0 0 3px rgba(79, 140, 255, 0.16),
        0 0 24px rgba(79, 140, 255, 0.15);
}


/* BUTTON */

.fk-button {
    width: 100%;
    height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0 20px;
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--fk-radius);
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #ffffff;
    background: linear-gradient(180deg, rgba(79, 140, 255, 0.95) 0%, rgba(64, 120, 235, 0.95) 100%);
    box-shadow:
        0 8px 22px rgba(79, 140, 255, 0.28),
        inset 0 1px 0 rgba(255, 255, 255, 0.20);
    transition:
        transform var(--fk-transition),
        box-shadow var(--fk-transition),
        background var(--fk-transition),
        opacity var(--fk-transition);
    user-select: none;
}

.fk-button-icon {
    font-size: 15px;
    line-height: 1;
    opacity: 0.95;
}

.fk-button:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow:
        0 12px 28px rgba(79, 140, 255, 0.42),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.fk-button:active:not(:disabled) {
    transform: translateY(0);
}

.fk-button:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
}

.fk-button-secondary {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow:
        0 6px 18px rgba(0, 0, 0, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.fk-button-secondary:hover:not(:disabled) {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.05) 100%);
}

.fk-button-success {
    background: linear-gradient(180deg, rgba(52, 211, 153, 0.95) 0%, rgba(34, 180, 125, 0.95) 100%);
    border-color: rgba(52, 211, 153, 0.35);
    box-shadow:
        0 8px 22px rgba(52, 211, 153, 0.30),
        inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.fk-button-danger {
    background: linear-gradient(180deg, rgba(248, 113, 113, 0.95) 0%, rgba(220, 80, 80, 0.95) 100%);
    border-color: rgba(248, 113, 113, 0.35);
    box-shadow:
        0 8px 22px rgba(248, 113, 113, 0.28),
        inset 0 1px 0 rgba(255, 255, 255, 0.22);
}


/* STATUS */

.fk-status {
    margin-top: 16px;
    padding: 13px 16px;
    border-radius: var(--fk-radius);
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid var(--fk-border);
    color: var(--fk-text-soft);
    font-size: 13px;
    letter-spacing: 0.2px;
    transition:
        color var(--fk-transition),
        border-color var(--fk-transition),
        background var(--fk-transition);
}

.fk-status.active {
    color: var(--fk-accent-2);
    border-color: rgba(79, 140, 255, 0.25);
    background: rgba(79, 140, 255, 0.06);
}

.fk-status.success {
    color: var(--fk-success);
    border-color: rgba(52, 211, 153, 0.28);
    background: rgba(52, 211, 153, 0.06);
}

.fk-status.error {
    color: var(--fk-danger);
    border-color: rgba(248, 113, 113, 0.28);
    background: rgba(248, 113, 113, 0.06);
}


/* REQUEST BOX */

.fk-request {
    display: none;
    margin-top: 18px;
    padding: 22px;
    border-radius: var(--fk-radius-lg);
    background: linear-gradient(135deg, rgba(79, 140, 255, 0.10), rgba(110, 168, 255, 0.03));
    border: 1px solid rgba(79, 140, 255, 0.28);
    box-shadow:
        0 12px 32px rgba(79, 140, 255, 0.10),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
    animation: fk-request-in 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.fk-request.active {
    display: block;
}

@keyframes fk-request-in {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.fk-request-icon {
    font-size: 30px;
    margin-bottom: 10px;
    line-height: 1;
}

.fk-request-title {
    font-size: 16px;
    font-weight: 800;
    color: var(--fk-text);
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}

.fk-request-text {
    color: var(--fk-text-soft);
    font-size: 13px;
    line-height: 1.55;
}

.fk-request-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 16px;
}


/* CLOSE */

.fk-close {
    display: none;
    margin-top: 14px;
}


/* SHARE AREA (VIDEO) */

.fk-share-area {
    display: none;
    margin-top: 20px;
    border-radius: var(--fk-radius-lg);
    overflow: hidden;
    border: 1px solid rgba(79, 140, 255, 0.28);
    background: rgba(0, 0, 0, 0.35);
    box-shadow:
        0 12px 32px rgba(0, 0, 0, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    animation: fk-request-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.fk-share-area.active {
    display: block;
}

.fk-share-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.35);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--fk-text-soft);
    text-transform: uppercase;
}

.fk-share-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--fk-danger);
    box-shadow: 0 0 10px var(--fk-danger-glow);
    animation: fk-pulse 1.5s ease-in-out infinite;
}

.fk-video {
    width: 100%;
    display: block;
    max-height: 380px;
    background: #000;
    object-fit: contain;
}


/* LOG KARTI */

.fk-log-card {
    margin-top: 22px;
}

.fk-log-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.fk-log-title-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.fk-log-title {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.fk-clear {
    padding: 7px 14px;
    border-radius: 8px;
    border: 1px solid var(--fk-border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--fk-text-muted);
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition:
        color var(--fk-transition),
        border-color var(--fk-transition),
        background var(--fk-transition);
}

.fk-clear:hover {
    color: var(--fk-text);
    border-color: var(--fk-border-strong);
    background: rgba(255, 255, 255, 0.06);
}

.fk-log {
    height: 210px;
    overflow-y: auto;
    padding: 16px;
    border-radius: var(--fk-radius);
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid var(--fk-border);
    font-family:
        "Cascadia Code",
        Consolas,
        "SF Mono",
        monospace;
    font-size: 12px;
    line-height: 1.7;
    color: var(--fk-text-soft);
}

.fk-log::-webkit-scrollbar {
    width: 8px;
}

.fk-log::-webkit-scrollbar-track {
    background: transparent;
}

.fk-log::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.10);
    border-radius: 8px;
}

.fk-log::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.18);
}

.fk-log-item {
    padding: 4px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    word-break: break-word;
}

.fk-log-item:last-child {
    border-bottom: none;
}

.fk-log-time {
    color: var(--fk-text-muted);
    margin-right: 6px;
    font-weight: 600;
}

.fk-log-item.success .fk-log-message {
    color: var(--fk-success);
}

.fk-log-item.error .fk-log-message {
    color: var(--fk-danger);
}


/* FOOTER */

.fk-footer {
    text-align: center;
    padding: 34px 10px 10px;
    color: var(--fk-text-muted);
    font-size: 12px;
    letter-spacing: 0.4px;
}


/* RESPONSIVE */

@media (max-width: 820px) {
    .fk-wrapper {
        padding: 24px 16px 50px;
    }

    .fk-grid {
        grid-template-columns: 1fr;
    }

    .fk-header {
        padding: 18px 20px;
    }

    .fk-title {
        font-size: 22px;
    }

    .fk-logo-mark {
        width: 48px;
        height: 48px;
        font-size: 18px;
    }

    .fk-card {
        padding: 22px;
    }

    .fk-code {
        font-size: 34px;
        letter-spacing: 8px;
    }

    .fk-input {
        font-size: 22px;
        letter-spacing: 8px;
    }
}

@media (max-width: 520px) {
    .fk-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .fk-header-badge {
        align-self: flex-start;
    }

    .fk-request-buttons {
        grid-template-columns: 1fr;
    }

    .fk-code {
        font-size: 28px;
        letter-spacing: 6px;
    }

    .fk-input {
        font-size: 20px;
        letter-spacing: 6px;
        height: 56px;
    }

    .fk-code-box {
        padding: 18px 14px;
    }

    .fk-card-title {
        font-size: 15px;
    }

    .fk-card-description {
        font-size: 12px;
    }

    .fk-video {
        max-height: 220px;
    }
}