/* Telegram theme variables fallbacks */
:root {
    --tg-theme-bg-color: #ffffff;
    --tg-theme-text-color: #000000;
    --tg-theme-hint-color: #999999;
    --tg-theme-link-color: #2481cc;
    --tg-theme-button-color: #3390ec;
    --tg-theme-button-text-color: #ffffff;
    --tg-theme-secondary-bg-color: #f0f0f0;
}

/* Base styles */
* {
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* Card component */
.card {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    border: 1px solid var(--tg-theme-hint-color, #e5e7eb);
    border-radius: 12px;
    padding: 16px;
}

/* Chip/Tag buttons */
.chip {
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    color: var(--tg-theme-text-color, #333333);
    border: 2px solid transparent;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.chip:hover {
    border-color: var(--tg-theme-button-color, #003366);
}

.chip-active {
    background: var(--tg-theme-button-color, #003366);
    border-color: var(--tg-theme-button-color, #003366);
    color: var(--tg-theme-button-text-color, #ffffff);
}

/* Input fields */
.input-field {
    width: 100%;
    padding: 12px 16px;
    background: var(--tg-theme-secondary-bg-color);
    border: 2px solid transparent;
    border-radius: 12px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.2s;
}

.input-field:focus {
    border-color: #003366;
}

.input-field::placeholder {
    color: var(--tg-theme-hint-color);
}

/* Buttons */
.btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 14px 20px;
    background: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    background: var(--tg-theme-secondary-bg-color, #e5e5e5);
    color: var(--tg-theme-text-color, #1a1a1a);
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-secondary:hover {
    opacity: 0.8;
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 2px;
}

/* Safe area for mobile */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .pb-24 {
        padding-bottom: calc(6rem + env(safe-area-inset-bottom));
    }
}