:root {
    --primary-color: #006837;
    --secondary-color: #008542;
    --success-color: #16a34a;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    --info-color: #0891b2;
    --background-light: #ffffff;
    --background-secondary: #f8fafc;
    --text-light: #1f2937;
    --text-secondary: #64748b;
    --border-light: #e5e7eb;
    --border-hover: #d1d5db;
    --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 16px -4px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --header-height: 70px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

[data-theme="dark"] {
    --primary-color: #10b981;
    --secondary-color: #059669;
    --background-light: #1f2937;
    --background-secondary: #374151;
    --text-light: #f3f4f6;
    --text-secondary: #9ca3af;
    --border-light: #4b5563;
    --border-hover: #6b7280;
    --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 8px 16px -4px rgba(0, 0, 0, 0.3);
    --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
}

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

*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Cairo', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--background-secondary) 100%);
    color: var(--text-light);
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: var(--header-height);
    line-height: 1.6;
    font-size: var(--font-size-base);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    flex: 1;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header Styles */
header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 0;
    box-shadow: var(--shadow-medium);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
}

.header-content > div {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.header-title {
    color: white;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0;
    text-align: center;
    font-family: 'Cairo', sans-serif;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    height: 45px;
    width: auto;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.menu-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: 1001;
    border-radius: var(--border-radius-sm);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* Side Menu */
.side-menu {
    position: fixed;
    right: -100%;
    top: 0;
    width: 320px;
    height: 100vh;
    background: var(--background-light);
    box-shadow: var(--shadow-large);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    overflow-y: auto;
    padding: calc(var(--header-height) + var(--spacing-md)) var(--spacing-md) var(--spacing-md) var(--spacing-md);
    border-left: 3px solid var(--primary-color);
}

.side-menu.active {
    right: 0;
}

.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    backdrop-filter: blur(2px);
}

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-light);
}

.menu-header h3 {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.menu-items {
    list-style: none;
}

.menu-item {
    margin-bottom: var(--spacing-sm);
}

.menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    font-weight: 500;
}

.menu-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    transform: translateX(-5px);
    border-color: var(--primary-color);
}

.menu-link.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-light);
}

.menu-link i:first-child {
    margin-left: var(--spacing-sm);
    width: 20px;
    text-align: center;
}

.submenu {
    list-style: none;
    margin-right: var(--spacing-xl);
    margin-top: var(--spacing-sm);
    display: none;
    animation: slideDown 0.3s ease;
}

.submenu.active {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        max-height: 200px;
        transform: translateY(0);
    }
}

.menu-close {
    background: linear-gradient(135deg, var(--danger-color), #b91c1c);
    border: none;
    color: white;
    font-size: var(--font-size-lg);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    padding: 0;
    box-shadow: var(--shadow-light);
}

.menu-close:hover {
    background: linear-gradient(135deg, #b91c1c, #991b1b);
    transform: scale(1.1) rotate(90deg);
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), #00a651);
    color: white;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-large);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.page-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.page-title i {
    font-size: 3rem;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.page-title h1 {
    font-size: 2.75rem;
    font-weight: 800;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    letter-spacing: -0.025em;
}

.page-description {
    font-size: var(--font-size-xl);
    opacity: 0.95;
    font-weight: 500;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Section Styles */
section {
    background: var(--background-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: var(--transition);
}

section:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

section:hover::before {
    transform: scaleX(1);
}

/* Input Section */
.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.input-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-color);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin: 0;
}

.input-actions {
    display: flex;
    gap: var(--spacing-sm);
}

#text-input {
    width: 100%;
    padding: var(--spacing-lg);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-family: 'Cairo', sans-serif;
    resize: vertical;
    transition: var(--transition);
    background: var(--background-secondary);
    min-height: 140px;
    line-height: 1.6;
}

#text-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 104, 55, 0.1);
    background: var(--background-light);
}

#text-input::placeholder {
    color: var(--text-secondary);
    line-height: 1.5;
}

#extract-btn {
    margin-top: var(--spacing-lg);
    width: 100%;
    font-size: var(--font-size-lg);
    padding: var(--spacing-lg);
}

/* Filter Section */
.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.filter-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0;
}

.filter-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.filter-select {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    background: var(--background-light);
    cursor: pointer;
    transition: var(--transition);
    min-width: 220px;
    font-family: 'Cairo', sans-serif;
    font-weight: 500;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 104, 55, 0.1);
}

.filter-select:hover {
    border-color: var(--border-hover);
}

/* Statistics Section */
.stats-section h3 {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.welcome-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.welcome-stat {
    background: linear-gradient(135deg, var(--background-light), var(--background-secondary));
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.welcome-stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.welcome-stat i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.welcome-stat h4 {
    font-size: var(--font-size-lg);
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.welcome-stat span {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.stat-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-large);
}

.stat-card:hover::before {
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
}

.stat-card.active {
    background: linear-gradient(135deg, var(--success-color), #15803d);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 30px -10px rgba(22, 163, 74, 0.4);
}

.stat-card .flag {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.stat-card .country-name {
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-xl);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.stat-card .count {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.stat-card .percentage {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    font-weight: 600;
}

/* Results Section */
.results-section h3 {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.results-info {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.count-badge {
    background: linear-gradient(135deg, var(--success-color), #15803d);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-weight: 700;
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.count-badge:hover {
    transform: scale(1.05);
}

.count-badge.filtered {
    background: linear-gradient(135deg, var(--info-color), #0e7490);
}

.results-container {
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background: var(--background-light);
    box-shadow: var(--shadow-light);
}

.results-display {
    max-height: 600px;
    overflow-y: auto;
    background: var(--background-secondary);
    padding: var(--spacing-lg);
}

.no-results {
    text-align: center;
    color: var(--text-secondary);
    padding: var(--spacing-2xl);
}

.no-results i {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
    color: var(--primary-color);
}

.no-results p {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
    font-weight: 600;
}

.help-text {
    font-size: var(--font-size-base);
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
}

.example-text {
    text-align: right;
    background: linear-gradient(135deg, rgba(0, 104, 55, 0.05), rgba(0, 133, 66, 0.05));
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border-right: 4px solid var(--primary-color);
    margin-top: var(--spacing-lg);
}

.example-text strong {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
    font-weight: 700;
    display: block;
    margin-bottom: var(--spacing-md);
}

.example-text ul {
    list-style: none;
    margin: var(--spacing-md) 0;
    padding: 0;
}

.example-text li {
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius-sm);
    font-family: 'Courier New', monospace;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.example-text li:hover {
    background: white;
    transform: translateX(-5px);
    box-shadow: var(--shadow-light);
}

.example-text .tip {
    background: linear-gradient(135deg, var(--info-color), #0e7490);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    margin-top: var(--spacing-md);
    box-shadow: var(--shadow-light);
}

.phone-number {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    margin: var(--spacing-sm) 0;
    background: var(--background-light);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.phone-number::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transition: var(--transition);
}

.phone-number:hover {
    background: linear-gradient(135deg, #f0f9f0, #e8f5e8);
    border-color: var(--primary-color);
    transform: translateX(-5px);
    box-shadow: var(--shadow-medium);
}

.phone-number:hover::before {
    transform: scaleY(1);
}

.number-info {
    flex: 1;
}

.phone-number .number {
    font-weight: 800;
    color: var(--text-light);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.international-number {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
    font-weight: 600;
}

.phone-number .country {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-right: var(--spacing-md);
}

.phone-number .country .flag {
    font-size: 1.5rem;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.country-details {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.country-name {
    font-weight: 600;
    color: var(--text-light);
    font-size: var(--font-size-base);
}

.country-code {
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.phone-number .actions {
    display: flex;
    gap: var(--spacing-sm);
}

.copy-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-light);
}

.copy-btn:hover {
    background: linear-gradient(135deg, var(--secondary-color), #00a651);
    transform: scale(1.1);
    box-shadow: var(--shadow-medium);
}

.results-actions {
    padding: var(--spacing-xl);
    background: var(--background-secondary);
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

/* Buttons */
.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    font-family: 'Cairo', sans-serif;
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn:disabled:hover::before {
    left: -100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--secondary-color), #00a651);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background: linear-gradient(135deg, #64748b, #475569);
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background: linear-gradient(135deg, #475569, #334155);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #15803d);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: linear-gradient(135deg, #15803d, #166534);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color), #0e7490);
    color: white;
}

.btn-info:hover:not(:disabled) {
    background: linear-gradient(135deg, #0e7490, #155e75);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: calc(var(--header-height) + var(--spacing-lg));
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 90vw;
}

.toast {
    background: linear-gradient(135deg, var(--success-color), #15803d);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    animation: slideInDown 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    max-width: 500px;
    position: relative;
    backdrop-filter: blur(10px);
}

.toast.error {
    background: linear-gradient(135deg, var(--danger-color), #b91c1c);
}

.toast.warning {
    background: linear-gradient(135deg, var(--warning-color), #b45309);
}

.toast.info {
    background: linear-gradient(135deg, var(--info-color), #0e7490);
}

.toast-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 50%;
    margin-right: var(--spacing-sm);
    transition: var(--transition);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.notification {
    position: fixed;
    top: calc(var(--header-height) + var(--spacing-lg));
    right: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    backdrop-filter: blur(10px);
    max-width: 350px;
}

.notification.show {
    transform: translateX(0);
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translate(-50%, -30px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0) scale(1);
    }
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-xl);
    text-align: center;
    margin-top: auto;
    font-family: 'Cairo', sans-serif;
    font-weight: 600;
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Loading state */
.loading {
    opacity: 0.8;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Custom scrollbar */
.results-display::-webkit-scrollbar {
    width: 8px;
}

.results-display::-webkit-scrollbar-track {
    background: var(--border-light);
    border-radius: 4px;
}

.results-display::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
}

.results-display::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--secondary-color), #00a651);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
        --spacing-xs: 0.2rem;
        --spacing-sm: 0.4rem;
        --spacing-md: 0.8rem;
        --spacing-lg: 1.2rem;
        --spacing-xl: 1.6rem;
        --spacing-2xl: 2.4rem;
        --font-size-xs: 0.7rem;
        --font-size-sm: 0.8rem;
        --font-size-base: 0.9rem;
        --font-size-lg: 1rem;
        --font-size-xl: 1.1rem;
        --font-size-2xl: 1.3rem;
        --font-size-3xl: 1.6rem;
    }

    .container {
        padding: var(--spacing-md);
    }

    .page-header {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .page-title {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .page-title h1 {
        font-size: 2rem;
    }

    .page-title i {
        font-size: 2rem;
    }

    .header-title {
        font-size: var(--font-size-lg);
    }

    .input-header,
    .filter-header,
    .results-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .input-actions,
    .filter-controls,
    .filter-actions,
    .results-info {
        justify-content: center;
        flex-wrap: wrap;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .welcome-stats {
        grid-template-columns: 1fr;
    }

    .results-actions {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .phone-number {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: var(--spacing-md);
    }

    .phone-number .country {
        justify-content: center;
        margin: 0;
    }

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

    .btn {
        justify-content: center;
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .btn-large {
        padding: var(--spacing-lg) var(--spacing-xl);
    }

    #text-input {
        font-size: 16px; /* Prevents zoom on iOS */
        min-height: 120px;
    }

    .side-menu {
        width: 85%;
        max-width: 300px;
    }

    section {
        padding: var(--spacing-lg);
    }

    .toast-container {
        max-width: 95vw;
        left: 50%;
        transform: translateX(-50%);
    }

    .toast {
        max-width: none;
        width: 100%;
    }

    .notification {
        right: var(--spacing-sm);
        left: var(--spacing-sm);
        max-width: none;
    }
}

@media (max-width: 480px) {
    .page-header {
        padding: var(--spacing-lg);
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .filter-select {
        width: 100%;
        min-width: auto;
    }

    .filter-actions {
        width: 100%;
    }

    .filter-actions .btn {
        flex: 1;
    }

    .example-text {
        padding: var(--spacing-md);
    }

    .example-text ul {
        font-size: var(--font-size-xs);
    }

    section {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
}

/* Animation for filtered results */
.phone-number.filtered-out {
    opacity: 0.3;
    transform: scale(0.95);
}

.phone-number.filtered-in {
    opacity: 1;
    transform: scale(1);
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-light: #000000;
        --text-secondary: #000000;
        --background-secondary: #ffffff;
    }
    
    .btn {
        border: 2px solid;
    }
    
    .phone-number {
        border: 2px solid;
    }
}

/* Print styles */
@media print {
    header,
    .side-menu,
    .toast-container,
    .notification,
    footer,
    .input-section,
    .filter-section,
    .results-actions {
        display: none !important;
    }
    
    body {
        padding-top: 0;
        background: white;
        color: black;
    }
    
    .container {
        max-width: none;
        margin: 0;
        padding: 0;
    }
    
    .page-header {
        background: white;
        color: black;
        border: 2px solid black;
    }
    
    .stats-section,
    .results-section {
        break-inside: avoid;
    }
    
    .phone-number {
        background: white;
        border: 1px solid black;
        break-inside: avoid;
    }
}

/* Dark mode toggle (if needed) */
.theme-toggle {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-sm);
    border-radius: 50%;
    cursor: pointer;
    z-index: 1000;
    transition: var(--transition);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-large);
}

/* Advanced hover effects */
@media (hover: hover) {
    .stat-card:hover {
        animation: pulse 1.5s infinite;
    }
    
    @keyframes pulse {
        0%, 100% {
            box-shadow: 0 15px 30px -10px rgba(0, 104, 55, 0.3);
        }
        50% {
            box-shadow: 0 20px 40px -10px rgba(0, 104, 55, 0.5);
        }
    }
}

/* Special effects for successful extraction */
.success-animation {
    animation: successPulse 0.6s ease-out;
}

@keyframes successPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}