/* ====================================
   EMOJI DATABASE - ŽLUTÉ STRÁNKY
   Main Stylesheet
   ==================================== */

/* ====================================
   CSS VARIABLES & RESET
==================================== */
:root {
    --color-yellow: #FFD700;
    --color-yellow-light: #FFF9E0;
    --color-yellow-dark: #E6C200;
    --color-orange: #FF9500;
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-coral: #FF6B6B;
    --color-pink: #FF8ED4;
    --color-purple: #A855F7;
    --color-blue: #3B82F6;
    --color-cyan: #06B6D4;
    --color-teal: #14B8A6;
    --color-green: #10B981;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-success: #10B981;
    --color-success-light: #D1FAE5;
    --color-warning: #F59E0B;
    --color-warning-light: #FEF3C7;
    --color-error: #EF4444;
    --color-error-light: #FEE2E2;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-glow-yellow: 0 8px 32px rgba(255, 215, 0, 0.25);
    --shadow-glow-cyan: 0 8px 32px rgba(6, 182, 212, 0.25);
    --shadow-glow-teal: 0 8px 32px rgba(20, 184, 166, 0.25);
    --shadow-glow-purple: 0 8px 32px rgba(168, 85, 247, 0.25);
    --shadow-glow-green: 0 8px 32px rgba(16, 185, 129, 0.25);
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
}

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

body {
    font-family: 'Inter Tight', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--color-gray-50);
    color: var(--color-gray-800);
    min-height: 100vh;
    line-height: 1.5;
}

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

/* ====================================
   HEADER
==================================== */
.header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 72px;
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
}

.header-logo-icon {
    width: 44px;
    height: 44px;
    background: var(--color-yellow);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.header-logo-text {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-gray-800);
}

.header-logo-text span {
    color: var(--color-gray-400);
    font-weight: 500;
}

.header-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.header-breadcrumb a {
    color: var(--color-gray-500);
    text-decoration: none;
    transition: var(--transition-fast);
}

.header-breadcrumb a:hover {
    color: var(--color-gray-800);
}

.header-breadcrumb-current {
    color: var(--color-gray-800);
    font-weight: 600;
}

.header-search {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.header-search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    font-family: inherit;
    transition: var(--transition-fast);
    background: var(--color-gray-50);
}

.header-search-input:focus {
    outline: none;
    border-color: var(--color-yellow);
    background: var(--color-white);
}

.header-search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.125rem;
    color: var(--color-gray-400);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-700);
    transition: var(--transition-fast);
}

.header-link:hover {
    background: var(--color-yellow-light);
    color: var(--color-gray-800);
}

.header-dropdown {
    position: relative;
}

.header-dropdown .dropdown-arrow {
    font-size: 0.625rem;
    margin-left: 0.25rem;
    transition: transform 0.2s ease;
}

.header-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.header-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 100;
    overflow: hidden;
}

.header-dropdown:hover .header-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.header-dropdown-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--color-gray-700);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.header-dropdown-menu a:hover {
    background: var(--color-yellow-light);
    color: var(--color-gray-800);
}

.header-stats {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--color-yellow-light);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

/* ====================================
   LAYOUT
==================================== */
.layout {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
}

.sidebar {
    width: 280px;
    background: var(--color-white);
    border-right: 1px solid var(--color-gray-200);
    min-height: calc(100vh - 72px);
    position: sticky;
    top: 72px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    overflow-y: auto;
}

.sidebar-title {
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--color-gray-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.75rem 1rem;
    margin-bottom: 0.25rem;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-gray-600);
    text-decoration: none;
    transition: var(--transition-fast);
    cursor: pointer;
}

.sidebar-nav-item:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-800);
}

.sidebar-nav-item.active {
    background: var(--color-yellow);
    color: var(--color-black);
    font-weight: 700;
}

.sidebar-nav-icon {
    font-size: 1.25rem;
    width: 28px;
    text-align: center;
}

.sidebar-nav-count {
    margin-left: auto;
    padding: 0.125rem 0.5rem;
    background: var(--color-gray-200);
    font-size: 0.6875rem;
    font-weight: 700;
    border-radius: var(--radius-full);
}

.sidebar-nav-item.active .sidebar-nav-count {
    background: rgba(0,0,0,0.15);
}

/* ====================================
   MAIN CONTENT
==================================== */
.main-content {
    flex: 1;
    padding: 2rem;
    min-width: 0;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.page-title-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.page-icon {
    width: 56px;
    height: 56px;
    background: var(--color-yellow);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: var(--shadow-glow-yellow);
}

.page-title {
    font-size: 1.75rem;
    font-weight: 900;
}

.page-subtitle {
    font-size: 0.9375rem;
    color: var(--color-gray-500);
}

.page-actions {
    display: flex;
    gap: 0.75rem;
}

/* ====================================
   EMOJI SECTIONS
==================================== */
.emoji-section {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.emoji-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-yellow), var(--color-orange));
}

.emoji-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.emoji-section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    font-weight: 800;
}

.emoji-section-title-icon {
    width: 36px;
    height: 36px;
    background: var(--color-yellow-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.emoji-section-count {
    padding: 0.25rem 0.75rem;
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-gray-500);
}

.emoji-section-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-500);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    transition: var(--transition-fast);
}

.emoji-section-link:hover {
    color: var(--color-gray-800);
}

/* ====================================
   EMOJI GRID
==================================== */
.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
    gap: 0.5rem;
}

.emoji-grid-large {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 0.75rem;
}

.emoji-item {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: var(--color-gray-50);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
}

.emoji-grid-large .emoji-item {
    font-size: 2.75rem;
}

.emoji-item:hover {
    background: var(--color-yellow-light);
    border-color: var(--color-yellow);
    transform: scale(1.1);
    z-index: 2;
    box-shadow: var(--shadow-md);
}

.emoji-item:active {
    transform: scale(0.95);
}

.emoji-item.copied {
    background: var(--color-success-light);
    border-color: var(--color-success);
}

.emoji-item.copied::after {
    content: '✓';
    position: absolute;
    top: -6px;
    right: -6px;
    width: 20px;
    height: 20px;
    background: var(--color-success);
    color: white;
    font-size: 0.625rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

/* ====================================
   EMOJI CONTAINER (Category Page)
==================================== */
.emoji-container {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.emoji-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-yellow), var(--color-orange), var(--color-coral));
}

/* ====================================
   BUTTONS
==================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 700;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    font-family: inherit;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-yellow);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-gray-700);
    border: 2px solid var(--color-gray-200);
}

.btn-secondary:hover {
    border-color: var(--color-yellow);
    background: var(--color-yellow-light);
}

/* ====================================
   TOAST NOTIFICATION
==================================== */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-gray-800);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.toast-icon {
    font-size: 1.25rem;
}

.toast-emoji {
    font-size: 1.5rem;
    padding: 0.25rem 0.5rem;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
}

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

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

.modal {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-gray-200);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--color-gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ====================================
   FORMS
==================================== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-yellow);
}

.form-input-emoji {
    font-size: 2.5rem;
    text-align: center;
    padding: 1rem;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--color-gray-500);
    margin-top: 0.5rem;
}

/* ====================================
   FOOTER
==================================== */
.footer {
    background: var(--color-white);
    border-top: 1px solid var(--color-gray-200);
    padding: 2rem 1.5rem;
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--color-gray-600);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-gray-800);
}

.footer-copy {
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

.footer-copy a {
    color: var(--color-gray-800);
    font-weight: 600;
}

.footer-copy a:hover {
    color: var(--color-yellow-dark);
}

/* ====================================
   KEYBOARD SHORTCUT HINT
==================================== */
.shortcut-hint {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    padding: 0.5rem 0.75rem;
    background: var(--color-gray-800);
    color: var(--color-gray-400);
    font-size: 0.6875rem;
    border-radius: var(--radius-md);
    opacity: 0;
    transition: opacity 0.3s;
}

body:hover .shortcut-hint {
    opacity: 0.5;
}

kbd {
    padding: 0.125rem 0.375rem;
    background: var(--color-gray-700);
    border-radius: 4px;
    font-family: inherit;
}

/* ====================================
   EMPTY STATE
==================================== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--color-gray-500);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-gray-700);
    margin-bottom: 0.5rem;
}

/* ====================================
   RESPONSIVE
==================================== */
@media (max-width: 1024px) {
    .layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        min-height: auto;
        position: relative;
        top: 0;
        flex-direction: row;
        flex-wrap: wrap;
        padding: 1rem;
        gap: 0.5rem;
    }

    .sidebar-title {
        width: 100%;
        padding: 0.5rem;
    }

    .sidebar-nav-item {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
    }

    .sidebar-nav-count {
        display: none;
    }

    .header-breadcrumb {
        display: none;
    }
}

@media (max-width: 768px) {
    .header-search {
        display: none;
    }

    .header-link span:last-child {
        display: none;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 0.75rem;
    }
}

@media (max-width: 640px) {
    .emoji-grid {
        grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
    }

    .emoji-item {
        font-size: 1.75rem;
    }

    .emoji-grid-large {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    }

    .emoji-grid-large .emoji-item {
        font-size: 2rem;
    }

    .page-icon {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }

    .page-title {
        font-size: 1.5rem;
    }
}