@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
    --color-bg: #F7F7F8;
    --color-surface: #FFFFFF;
    --color-surface-alt: #F3F4F6;
    --color-border: #E5E7EB;
    --color-text: #1F2937;
    --color-text-muted: #6B7280;

    --color-brand: #DB3434;
    --color-brand-hover: #C22B2B;
    --color-brand-tint: #FDECEC;

    --color-success: #10B981;
    --color-success-tint: #ECFDF5;
    --color-warning: #F59E0B;
    --color-warning-tint: #FFFBEB;
    --color-info: #3B82F6;
    --color-info-tint: #EFF6FF;

    --font-display: 'Outfit', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 999px;

    --shadow-sm: 0 1px 2px rgba(17, 24, 39, 0.06);
    --shadow-md: 0 4px 12px rgba(17, 24, 39, 0.08);
    --shadow-lg: 0 12px 32px rgba(17, 24, 39, 0.16);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-bg: #0F1115;
        --color-surface: #1B2028;
        --color-surface-alt: #232A35;
        --color-border: #323B49;
        --color-text: #F3F4F6;
        --color-text-muted: #9CA3AF;

        --color-brand: #E5544F;
        --color-brand-hover: #EF6C67;
        --color-brand-tint: rgba(229, 84, 79, 0.16);

        --color-success: #34D399;
        --color-success-tint: rgba(16, 185, 129, 0.16);
        --color-warning: #FBBF24;
        --color-warning-tint: rgba(245, 158, 11, 0.16);
        --color-info: #60A5FA;
        --color-info-tint: rgba(59, 130, 246, 0.16);

        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
        --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
    }
}

:root[data-theme="dark"] {
    --color-bg: #0F1115;
    --color-surface: #1B2028;
    --color-surface-alt: #232A35;
    --color-border: #323B49;
    --color-text: #F3F4F6;
    --color-text-muted: #9CA3AF;

    --color-brand: #E5544F;
    --color-brand-hover: #EF6C67;
    --color-brand-tint: rgba(229, 84, 79, 0.16);

    --color-success: #34D399;
    --color-success-tint: rgba(16, 185, 129, 0.16);
    --color-warning: #FBBF24;
    --color-warning-tint: rgba(245, 158, 11, 0.16);
    --color-info: #60A5FA;
    --color-info-tint: rgba(59, 130, 246, 0.16);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
}

*, *::before, *::after { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
}
h1, h2, h3, h4, .ds-display { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.01em; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 44px;
    padding: 0 var(--space-5);
    border-radius: var(--radius-md);
    border: 1.5px solid transparent;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
    white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-sm { min-height: 34px; padding: 0 var(--space-3); font-size: 13px; }
.btn-lg { min-height: 52px; padding: 0 var(--space-6); font-size: 16px; }

.btn-primary { background: var(--color-brand); border-color: var(--color-brand); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--color-brand-hover); border-color: var(--color-brand-hover); }

.btn-secondary { background: var(--color-surface); border-color: var(--color-border); color: var(--color-text); }
.btn-secondary:hover:not(:disabled) { background: var(--color-surface-alt); }

.btn-ghost { background: transparent; border-color: transparent; color: var(--color-text-muted); }
.btn-ghost:hover:not(:disabled) { background: var(--color-surface-alt); color: var(--color-text); }

.btn-danger-outline { background: transparent; border-color: var(--color-brand); color: var(--color-brand); }
.btn-danger-outline:hover:not(:disabled) { background: var(--color-brand-tint); }

/* ---- Form fields ---- */
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field-label { font-size: 13px; font-weight: 600; color: var(--color-text-muted); }
.field-help { font-size: 12px; color: var(--color-text-muted); }
.field-error { font-size: 12px; color: var(--color-brand); }

.input, .select, .textarea {
    width: 100%;
    min-height: 44px;
    padding: 0 var(--space-4);
    border-radius: var(--radius-md);
    border: 1.5px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 14px;
}
.textarea { min-height: 88px; padding: var(--space-3) var(--space-4); resize: vertical; }
.input:focus, .select:focus, .textarea:focus {
    outline: none;
    border-color: var(--color-brand);
    box-shadow: 0 0 0 3px var(--color-brand-tint);
}
.input.has-error, .select.has-error, .textarea.has-error { border-color: var(--color-brand); }

/* ---- Card ---- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.card-header { padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--color-border); font-family: var(--font-display); font-weight: 600; }
.card-body { padding: var(--space-5); }
.card-footer { padding: var(--space-4) var(--space-5); border-top: 1px solid var(--color-border); display: flex; gap: var(--space-3); justify-content: flex-end; }

/* ---- Badge ---- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 700;
}
.badge-brand { background: var(--color-brand-tint); color: var(--color-brand); }
.badge-success { background: var(--color-success-tint); color: var(--color-success); }
.badge-warning { background: var(--color-warning-tint); color: var(--color-warning); }
.badge-info { background: var(--color-info-tint); color: var(--color-info); }
.badge-neutral { background: var(--color-surface-alt); color: var(--color-text-muted); }

/* ---- Chip (modifier selection) ---- */
.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    min-height: 38px;
    padding: 0 var(--space-4);
    border-radius: var(--radius-full);
    border: 1.5px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.chip:hover { border-color: var(--color-brand); }
.chip.selected { background: var(--color-brand); border-color: var(--color-brand); color: #fff; }

/* ---- Theme toggle ---- */
.ds-theme-toggle {
    background: none;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 15px;
    line-height: 1;
    padding: 0;
    transition: background 0.15s ease, border-color 0.15s ease;
}
.ds-theme-toggle:hover { background: var(--color-surface-alt); border-color: var(--color-brand); }

/* ---- Modal ---- */
.ds-modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(15, 17, 21, 0.5);
    display: flex; align-items: center; justify-content: center;
    padding: var(--space-5);
    z-index: 1000;
    animation: ds-fade-in 0.15s ease;
}
.ds-modal {
    width: 100%; max-width: 420px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: ds-pop-in 0.15s ease;
}
.ds-modal-header { padding: var(--space-5) var(--space-5) 0; font-family: var(--font-display); font-weight: 700; font-size: 18px; }
.ds-modal-body { padding: var(--space-4) var(--space-5); color: var(--color-text-muted); font-size: 14px; line-height: 1.5; }
.ds-modal-footer { padding: 0 var(--space-5) var(--space-5); display: flex; gap: var(--space-3); justify-content: flex-end; }
.ds-modal-footer .btn { flex: 1; }

@keyframes ds-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes ds-pop-in { from { opacity: 0; transform: translateY(8px) scale(0.98); } to { opacity: 1; transform: none; } }

/* ---- Toast ---- */
.ds-toast-container {
    position: fixed; top: var(--space-5); right: var(--space-5);
    display: flex; flex-direction: column; gap: var(--space-3);
    z-index: 1100;
    max-width: min(360px, calc(100vw - 2 * var(--space-5)));
}
.ds-toast {
    display: flex; align-items: flex-start; gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    font-size: 14px;
    animation: ds-slide-in 0.2s ease;
}
.ds-toast.ds-toast-out { animation: ds-slide-out 0.15s ease forwards; }
.ds-toast-icon { flex-shrink: 0; width: 20px; height: 20px; }
.ds-toast-message { flex: 1; color: var(--color-text); line-height: 1.4; }
.ds-toast-success .ds-toast-icon { color: var(--color-success); }
.ds-toast-error .ds-toast-icon { color: var(--color-brand); }
.ds-toast-warning .ds-toast-icon { color: var(--color-warning); }
.ds-toast-info .ds-toast-icon { color: var(--color-info); }
.ds-toast-close { background: none; border: none; color: var(--color-text-muted); cursor: pointer; font-size: 16px; line-height: 1; padding: 0; }

@keyframes ds-slide-in { from { opacity: 0; transform: translateX(16px); } to { opacity: 1; transform: none; } }
@keyframes ds-slide-out { from { opacity: 1; } to { opacity: 0; transform: translateX(16px); } }