/* ===================================
   Weather Prediction App - Main Styles
   Modern, Professional Design
   =================================== */

/* CSS Variables for Theming */
:root {
    /* Colors - Dark Mode Only */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;

    --bg-primary: #0f172a;
    --bg-secondary: #080c14;
    --bg-tertiary: #1e293b;

    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;

    --border-color: #1e293b;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --gradient-secondary: linear-gradient(135deg, #f43f5e 0%, #fb923c 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Font Family */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}


/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* Base Text Styles */
body,
p,
span,
div,
a,
li,
td,
th,
label,
input,
textarea,
select {
    color: var(--text-primary);
}

select {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    padding: 0.5rem 2rem 0.5rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='white'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.25rem;
    transition: all var(--transition-fast);
}

select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-primary);
    font-weight: 700;
}

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

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


/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}


/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* Gradient Text */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--primary-color);
    display: inline-block;
    /* Helps with background-clip */
}




/* Glass Card Effect */
.glass-card {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
    position: relative;
    z-index: 1;
}




.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
    color: white;
}


.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Navigation */
.navbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    height: 80px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all var(--transition-base);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.02em;
    text-decoration: none;
    flex: 0 0 auto;
}

.nav-brand i {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 4px rgba(99, 102, 241, 0.3));
}



.nav-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    flex: 1;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-fast);
    transform: translateX(-50%);
    border-radius: var(--radius-full);
}

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

.nav-link:hover::after {
    width: 60%;
}


.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    justify-content: flex-end;
    flex: 0 0 auto;
}

.mobile-menu-toggle {
    display: none;
}


/* Profile Menu */
#user-menu {
    position: relative;
    padding: 0.25rem;
}


#user-menu:hover .dropdown-menu {
    display: block;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 5px);
    right: 0;
    width: 220px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 0.5rem 0;
    display: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 1.5rem;
    color: var(--text-primary);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    background: var(--bg-primary);
    color: var(--primary-color);
}

.dropdown-menu i {
    font-size: 1.1rem;
    width: 20px;
}

#user-menu-btn {
    font-size: 1.75rem;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
}

#user-menu-btn:hover {
    color: var(--primary-color);
    transform: scale(1.05);
}




/* Hero Section */
.hero {
    position: relative;
    padding: 10rem 0;
    overflow: hidden;
    background: #0f172a;
    /* Solid dark background for better contrast */
    background: radial-gradient(circle at 50% 50%, #1e293b 0%, #080c14 100%);
    color: white;
}



.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 850px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
    letter-spacing: -0.03em;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}



.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-top: var(--spacing-2xl);
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: var(--text-primary);
    font-weight: 600;
}

.feature-badge:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-8px) scale(1.02);
    color: white;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.feature-badge i {
    color: var(--primary-color);
    font-size: 1.3rem;
}



/* Animated Clouds */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    opacity: 0.2;
    pointer-events: none;
    /* crucial to allow interaction with content */
    z-index: 1;
}


.cloud {
    position: absolute;
    background: white;
    border-radius: 100px;
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.cloud::before,
.cloud::after {
    content: '';
    position: absolute;
    background: white;
    border-radius: 100px;
}

.cloud-1 {
    width: 100px;
    height: 40px;
    top: 20%;
    left: -10%;
    animation-delay: 0s;
}

.cloud-2 {
    width: 150px;
    height: 60px;
    top: 50%;
    left: -15%;
    animation-delay: 5s;
}

.cloud-3 {
    width: 120px;
    height: 50px;
    top: 70%;
    left: -12%;
    animation-delay: 10s;
}

@keyframes float {

    0%,
    100% {
        transform: translateX(0) translateY(0);
    }

    50% {
        transform: translateX(120vw) translateY(-20px);
    }
}

/* Search Container */
.search-container {
    position: relative;
    max-width: 650px;
    margin: 0 auto;
    z-index: 10;
}


.search-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-base);
}

.search-box:focus-within {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}


.search-box > i {
    background: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 1.6rem;
    filter: drop-shadow(0 0 8px rgba(129, 140, 248, 0.4));
    margin-right: 0.5rem;
}



.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1.25rem;
    color: white;
    background: transparent;
    font-weight: 500;
    padding: 0.75rem 0;
}



.search-box input::placeholder {
    color: rgba(255, 255, 255, 0.5);
    font-weight: 400;
}


#search-btn {
    padding: 0.75rem;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all var(--transition-base);
}

#search-btn i {
    color: white;
    -webkit-text-fill-color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition-fast);
}

#search-btn:hover i {
    transform: translateX(3px);
}



.search-suggestions {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    left: 0;
    right: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    max-height: 350px;
    overflow-y: auto;
    display: none;
    z-index: 1002;
    backdrop-filter: blur(16px);
}


[data-theme="dark"] .search-suggestions {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.search-suggestions.active {
    display: block;
}

.suggestion-item {
    padding: var(--spacing-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover {
    background: var(--bg-secondary);
}

.suggestion-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Weather Section */
.weather-section {
    padding: var(--spacing-2xl) 0;
}

.current-weather-card {
    margin-bottom: var(--spacing-xl);
}

.weather-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.weather-main {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.weather-icon-large img {
    width: 120px;
    height: 120px;
}

.weather-temp {
    display: flex;
    align-items: flex-start;
}

.temp-value {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
}

.temp-unit {
    font-size: 2rem;
    font-weight: 300;
    margin-top: 0.5rem;
}

.weather-description {
    flex: 1;
}

.weather-description p:first-child {
    font-size: 1.5rem;
    font-weight: 500;
    text-transform: capitalize;
}

.feels-like {
    color: var(--text-secondary);
}

.weather-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.detail-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.detail-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.detail-value {
    display: block;
    font-size: 1.125rem;
    font-weight: 600;
}

/* AQI Card */
.aqi-card {
    margin-bottom: var(--spacing-xl);
}

.aqi-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.aqi-value {
    font-size: 3rem;
    font-weight: 700;
}

.aqi-category {
    font-size: 1.25rem;
    font-weight: 500;
}

.aqi-bar {
    height: 8px;
    background: linear-gradient(to right, #00e400, #ffff00, #ff7e00, #ff0000, #8f3f97);
    border-radius: var(--radius-full);
    position: relative;
}

.aqi-indicator {
    position: absolute;
    top: -4px;
    width: 16px;
    height: 16px;
    background: white;
    border: 2px solid var(--text-primary);
    border-radius: var(--radius-full);
    transition: left var(--transition-base);
}

/* Alerts */
.alerts-section {
    margin-bottom: var(--spacing-xl);
}

.alerts-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.alert-card {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid;
    background: var(--bg-tertiary);
}

.alert-card.warning {
    border-color: #f59e0b;
    background: rgba(245, 158, 11, 0.1);
}

.alert-card.caution {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.alert-card.info {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.1);
}

/* Forecast Tabs */
.forecast-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: -2px;
}

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

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Forecast Grid */
.forecast-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

@media (max-width: 480px) {
    .forecast-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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


.forecast-card {
    padding: var(--spacing-xl) var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(8px);
}

.forecast-card:hover {
    transform: translateY(-8px) scale(1.05);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-color);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.forecast-day {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.forecast-icon {
    font-size: 2.2rem;
    margin: var(--spacing-lg) 0;
    color: var(--primary-color);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 4px 8px rgba(99, 102, 241, 0.3));
}

.forecast-temp {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.forecast-details {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.forecast-details i {
    color: var(--primary-light);
    margin-right: 0.25rem;
}


/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

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

/* Map */
.weather-map {
    height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* Features Section */
.features-section {
    padding: 4rem 0;
    background: var(--bg-primary);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-xl);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 30px rgba(99, 102, 241, 0.2);
}

/* ML Prediction specific styles */
#ml-forecast-grid {
    margin-bottom: var(--spacing-xl);
}

.model-metrics-card {
    margin-top: var(--spacing-xl);
}


.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    font-size: 2rem;
    color: white;
}

/* Auth Section */
.auth-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-2xl) 0;
}

.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.auth-card {
    max-width: 450px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.form-group input::placeholder {
    color: var(--text-tertiary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-tertiary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.link {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}


.form-hint {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.auth-illustration {
    display: flex;
    align-items: center;
    justify-content: center;
}

.illustration-content {
    text-align: center;
    color: var(--primary-color);
}

/* Footer */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: var(--text-secondary);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    text-align: center;
    color: white;
}

.loading-spinner i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 10001;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    pointer-events: none;
}

.toast {
    padding: 1.25rem 1.5rem;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 320px;
    animation: slideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: auto;
    border: 1px solid var(--border-color);
}


.toast.success {
    border-left: 4px solid #10b981;
}

.toast.error {
    border-left: 4px solid #ef4444;
}

.toast.info {
    border-left: 4px solid #3b82f6;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    /* Hero title size now handled by clamp() */
}

@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
    }
}

@media (max-width: 768px) {
    /* Hero title size now handled by clamp() */
    .hero-subtitle {
        font-size: 1.1rem;
    }

    .search-box input {
        font-size: 1.1rem;
    }

    .auth-container {
        grid-template-columns: 1fr;
    }

    .auth-illustration {
        display: none;
    }

    .weather-main {
        flex-direction: column;
        text-align: center;
    }

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

/* Dashboard Styles */
.dashboard-section {
    padding: 4rem 0;
}

.dashboard-header {
    margin-bottom: 3rem;
    text-align: center;
}

.dashboard-header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}


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

.favorites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.favorite-card {
    position: relative;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.favorite-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.favorite-weather {
    text-align: center;
    padding: 1rem 0;
}

.weather-icon-small {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.temp-large {
    font-size: 3.5rem;
    font-weight: 700;
}

.favorite-details {
    display: flex;
    justify-content: space-around;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.favorite-details i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.remove-favorite {
    color: #ef4444;
}

.remove-favorite:hover {
    background: #fee2e2;
    color: #b91c1c;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.modal.active {
    display: flex;
    opacity: 1;
}


.modal-content {
    background: var(--bg-primary);
    width: 90%;
    max-width: 500px;
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: translateY(0);
}

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

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

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

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 5rem 2rem;
    text-align: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-xl);
    border: 2px dashed var(--border-color);
}

.empty-state i {
    color: var(--text-tertiary);
    margin-bottom: 1.5rem;
}

.empty-state h3 {
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Stats Section */
.stats-section {
    margin-top: 5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.stat-card {
    text-align: center;
    padding: 2.5rem;
}

.stat-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Micro-animations */
@keyframes pulse-glow {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }

    50% {
        transform: scale(1.1);
        opacity: 1;
    }

    100% {
        transform: scale(1);
        opacity: 0.8;
    }
}

.feature-badge i {
    animation: pulse-glow 3s infinite ease-in-out;
}


/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: 1rem;
}

.mt-2 {
    margin-top: 2rem;
}

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

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

.hidden {
    display: none !important;
}

/* Responsive Navbar */
@media (max-width: 992px) {
    .navbar .container {
        display: flex;
        justify-content: space-between;
    }

    .nav-brand {
        margin-right: 0;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        padding: var(--spacing-lg);
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        z-index: 1000;
        gap: var(--spacing-md);
        text-align: center;
        margin-left: 0;
    }

    .nav-actions {
        margin-left: 0;
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
        background: transparent;
        border: none;
        color: var(--text-primary);
        font-size: 1.5rem;
        cursor: pointer;
        padding: 0.5rem;
    }
}