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

body {
    font-family: var(--font-inter);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.flex-col {
    flex-direction: column;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

.gap-6 {
    gap: 1.5rem;
}

.gap-8 {
    gap: 2rem;
}

.gap-10 {
    gap: 2.5rem;
}

.gap-12 {
    gap: 3rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mb-8 {
    margin-bottom: 2rem;
}

.mb-10 {
    margin-bottom: 2.5rem;
}

.mb-12 {
    margin-bottom: 3rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-lg {
    font-size: 1.125rem;
}

.font-medium {
    font-weight: 500;
}

.font-bold {
    font-weight: 700;
}

.text-muted {
    color: var(--color-text-muted);
}

.whitespace-pre-wrap {
    white-space: pre-wrap;
}

.text-primary {
    color: var(--color-primary);
}

.hidden {
    display: none !important;
}

/* Responsive Utilities */
@media (min-width: 768px) {
    .md\:flex {
        display: flex !important;
    }

    .md\:block {
        display: block !important;
    }

    .hidden.md\:flex {
        display: flex !important;
    }

    .md\:items-center {
        align-items: center !important;
    }

    .md\:justify-between {
        justify-content: space-between !important;
    }

    .md\:gap-0 {
        gap: 0 !important;
    }

    .md\:w-auto {
        width: auto !important;
    }

    .md\:w-fit {
        width: fit-content !important;
    }

    .md\:flex-none {
        flex: none !important;
    }

    .md\:shrink-0 {
        flex-shrink: 0 !important;
    }

    .md\:ml-auto {
        margin-left: auto !important;
    }

    .md\:px-0 {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    .md\:px-6 {
        padding-left: 1.5rem !important;
        padding-right: 1.5rem !important;
    }
}

@media (max-width: 640px) {
    .hidden-mobile {
        display: none !important;
    }
}

/* Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-ghost {
    color: var(--color-text-secondary);
}

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

.btn-outline {
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-surface-hover);
}

.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

/* Loading */
.loading-screen {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.spinner {
    width: 2.5rem;
    height: 2.5rem;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Inputs */
.input {
    width: 100%;
    padding: 0.625rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background-color: var(--color-surface);
    color: var(--color-text-primary);
    transition: border-color 0.2s;
}

.input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* Dropdowns */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    width: 240px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: all 0.2s ease;
    z-index: 100;
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--color-text-primary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.1s;
}

.dropdown-item:hover {
    background-color: var(--color-surface-hover);
}

.dropdown-item.danger {
    color: var(--color-error);
}

.dropdown-item.danger:hover {
    background-color: var(--color-error-bg);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--color-divider);
    margin: 0.5rem 0;
}

/* Header Avatar */
.header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border: 2px solid transparent;
    transition: all 0.2s;
}

.header-avatar:hover {
    border-color: var(--color-primary);
}

.header-avatar.is-premium {
    background-color: #FEF7EC;
    color: #FFAB00;
    border: 2px solid #FFAB00;
}

:root.dark-theme .header-avatar.is-premium,
.dark-theme .header-avatar.is-premium {
    background-color: #45381E;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-surface);
    width: 100%;
    max-width: 500px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform 0.2s;
    overflow: hidden;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-divider);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    background: var(--color-surface-hover);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
}

.option-card {
    border: 1px solid var(--color-border);
    padding: 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.option-card:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.option-card.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 500;
}

/* Elimination Mode */
.option-card-item.eliminated {
    opacity: 0.5;
    text-decoration: line-through;
    filter: grayscale(1);
    position: relative;
}

.option-card-item.eliminated::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 2px;
    background: currentColor;
    opacity: 0.5;
    pointer-events: none;
}

/* Added Utilities for Premium Page */
.grid {
    display: grid;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.w-full {
    width: 100%;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.max-w-4xl {
    max-width: 56rem;
}

.max-w-5xl {
    max-width: 64rem;
}

.max-w-6xl {
    max-width: 72rem;
}

@media (min-width: 768px) {
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .md\:flex-row {
        flex-direction: row;
    }
}