/* ========================================
   SSL Certificate Decoder — Security Theme
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --primary: #10B981;
    --primary-glow: rgba(16, 185, 129, 0.15);
    --danger: #EF4444;
    --danger-glow: rgba(239, 68, 68, 0.12);
    --warning: #F59E0B;
    --accent: #3B82F6;

    --bg-deep: #0F172A;
    --bg-base: #1E293B;
    --bg-surface: #334155;
    --bg-elevated: #475569;
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --border: rgba(51, 65, 85, 0.6);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition: 200ms ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-deep);
    color: var(--text-primary);
    min-height: 100vh;
}

.app {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 16px 60px;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.1rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.header-actions {
    display: flex;
    gap: 6px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition);
}

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

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: #059669;
}

.btn-large {
    padding: 10px 24px;
    font-size: 0.85rem;
}

.btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--text-muted);
}

.card {
    background: var(--bg-base);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px;
    margin-bottom: 18px;
    animation: fadeIn 0.3s ease-out;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 14px;
}

.pem-input {
    width: 100%;
    padding: 14px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-primary);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    resize: vertical;
    line-height: 1.6;
    margin-bottom: 12px;
}

.pem-input:focus {
    border-color: var(--primary);
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.result-header .section-title {
    margin-bottom: 0;
}

.validity-badge {
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-valid {
    background: var(--primary-glow);
    color: var(--primary);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-expired {
    background: var(--danger-glow);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.fields-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.field-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 9px 14px;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.field-row:hover {
    background: var(--bg-surface);
}

.field-key {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
    min-width: 140px;
}

.field-val {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-primary);
    text-align: right;
    word-break: break-all;
}

.sans-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.san-tag {
    padding: 4px 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.san-tag.wildcard {
    border-color: var(--warning);
    color: var(--warning);
}

.fingerprint-value {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-secondary);
    padding: 12px;
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    word-break: break-all;
    cursor: pointer;
    transition: color var(--transition);
}

.fingerprint-value:hover {
    color: var(--primary);
}

.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 10px 14px;
    background: rgba(30, 41, 59, 0.92);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    color: var(--text-primary);
    animation: toast-in 0.3s ease-out;
}

.toast.success {
    border-left: 3px solid var(--primary);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (max-width: 600px) {
    .logo span {
        display: none;
    }

    .field-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
    }

    .field-val {
        text-align: left;
    }
}