/* Base Styles & Variables */
:root {
    /* Relaxing Palette */
    --primary: #6B9080; /* Soft Sage Green */
    --primary-light: #A4C3B2;
    --primary-dark: #3A5A4A;
    --primary-container: #EAF4F0;
    --on-primary: #FFFFFF;
    --on-primary-container: #1C3329;
    
    --secondary: #8ECAE6; /* Soft Sky Blue */
    --secondary-container: #E1F5FE;
    --on-secondary: #FFFFFF;
    --on-secondary-container: #004D61;
    
    --tertiary: #B8B8FF; /* Gentle Lavender */
    --tertiary-container: #EFEEFF;
    
    --surface: rgba(255, 255, 255, 0.92);
    --surface-variant: #F4F7F6; /* Very soft cool grey */
    --on-surface: #2C3E50;
    --on-surface-variant: #607D8B;
    
    --outline: #CFD8DC;
    --shadow: rgba(44, 62, 80, 0.1);
    
    --error: #E57373;
    --success: #81C784;
    --warning: #FFB74D;
    
    --joy: #9575CD;
    --peace: #4DB6AC;
    --energy: #FFF176;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #FDFBF7 0%, #E6F3F0 100%); /* Relaxing Cream to Sage */
    background-size: 400% 400%;
    animation: gradientBG 20s ease infinite;
    color: var(--on-surface);
    line-height: 1.5;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Animated Background Orbs */
.background-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.6;
    animation: orbFloat 20s infinite alternate cubic-bezier(0.45, 0.05, 0.55, 0.95);
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    left: -100px;
    animation-duration: 25s;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    bottom: -50px;
    right: -50px;
    animation-duration: 18s;
    animation-delay: -5s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: var(--tertiary);
    top: 40%;
    left: 60%;
    animation-duration: 22s;
    animation-delay: -10s;
}

@keyframes orbFloat {
    0% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(50px, 100px) rotate(120deg); }
    66% { transform: translate(-50px, 50px) rotate(240deg); }
    100% { transform: translate(0, 0) rotate(360deg); }
}

/* Welcome Overlay */
.welcome-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    color: white;
    animation: fadeOut 0.5s ease-out 2s forwards;
}

.welcome-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    animation: slideInUp 0.8s ease-out;
}

.welcome-subtitle {
    font-size: 20px;
    opacity: 0.9;
    animation: slideInUp 0.8s ease-out 0.2s both;
}

.welcome-emoji {
    font-size: 80px;
    margin-bottom: 24px;
    animation: bounce 1s ease-in-out;
}

@keyframes fadeOut {
    to { opacity: 0; visibility: hidden; }
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-30px); }
    60% { transform: translateY(-15px); }
}

/* Header */
.app-header {
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--primary);
    padding: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.app-header:hover {
    background-color: rgba(255, 255, 255, 1);
    box-shadow: 0 6px 24px rgba(0,0,0,0.08);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-actions {
    display: flex;
    gap: 8px;
    position: relative;
}

.header-actions button {
    color: var(--primary) !important; /* Override inline style */
}

/* Notification Badge Pulse */
.notification-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--error);
    color: white;
    font-size: 10px;
    font-weight: bold;
    padding: 2px 5px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
    animation: pulseBadge 2s infinite;
}

@keyframes pulseBadge {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 183, 77, 0.7); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(255, 183, 77, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 183, 77, 0); }
}

.notification-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    padding: 16px;
    min-width: 300px;
    max-height: 400px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
    animation: slideInDown 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 -4px 30px rgba(0,0,0,0.05);
    display: flex;
    justify-content: space-around;
    padding: 12px 0;
    /* Android Safe Area Fix - Significantly Increased Padding */
    padding-bottom: calc(40px + env(safe-area-inset-bottom)); 
    z-index: 100;
    border-top-left-radius: 24px;
    border-top-right-radius: 24px;
}

/* Guided Relaxation Styles */
.guided-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, #2E7D32, #004D40);
    z-index: 6000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    animation: fadeIn 0.5s ease;
    padding: 20px;
    text-align: center;
}

.guided-step-icon {
    font-size: 80px;
    margin-bottom: 30px;
    animation: floatIcon 3s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(255,255,255,0.3));
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.guided-instruction {
    font-size: 28px;
    font-weight: 300;
    margin-bottom: 16px;
    line-height: 1.4;
}

.guided-sub {
    font-size: 18px;
    opacity: 0.8;
    margin-bottom: 40px;
    max-width: 80%;
}

.guided-progress-dots {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
}

.progress-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: all 0.3s;
}

.progress-dot.active {
    background: white;
    transform: scale(1.2);
}

.guided-action-btn {
    background: white;
    color: #004D40;
    border: none;
    padding: 16px 40px;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    transition: transform 0.2s;
}

.guided-action-btn:active {
    transform: scale(0.95);
}

.guided-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 16px;
}

.icon-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    background: none;
    color: var(--on-surface-variant);
    position: relative;
}

.nav-item.active {
    color: var(--primary);
    transform: translateY(-4px);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary);
}

.nav-item:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

.nav-item .material-icons {
    font-size: 24px;
    transition: transform 0.3s ease;
}

.nav-item:hover .material-icons {
    transform: scale(1.2);
}

/* Main Content & Cards */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
    /* Increased bottom padding to prevent content overlap with taller nav */
    padding-bottom: calc(120px + env(safe-area-inset-bottom));
    min-height: calc(100vh - 120px);
    position: relative;
    z-index: 1;
}

.card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-radius: 24px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 12px 40px rgba(0,0,0,0.2);
    background: rgba(255, 255, 255, 0.95);
}

.card-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--on-surface);
    position: relative;
    display: inline-block;
}

.card-title::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.card:hover .card-title::after {
    transform: scaleX(1);
}

/* Mood Selector - Enhanced */
.mood-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 16px;
    margin: 20px 0;
}

.mood-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.mood-card:hover {
    transform: translateY(-8px) scale(1.05) rotate(2deg);
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
    background: rgba(255, 255, 255, 0.95);
}

.mood-card.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--primary-container), white);
    transform: scale(1.05);
    box-shadow: 0 0 0 4px rgba(107, 144, 128, 0.2);
}

.mood-emoji {
    font-size: 48px;
    margin-bottom: 12px;
    display: block;
    transition: transform 0.3s ease;
}

.mood-card:hover .mood-emoji {
    animation: moodBounce 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes moodBounce {
    0% { transform: scale(1); }
    50% { transform: scale(1.4); }
    100% { transform: scale(1.2); }
}

/* Progress Section */
.progress-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin: 16px 0;
}

.progress-card {
    background-color: var(--surface-variant);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.progress-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    background-color: white;
}

.progress-value {
    font-size: 24px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 4px;
}

.progress-label {
    font-size: 14px;
    color: var(--on-surface-variant);
}

/* Chart Container */
.chart-container {
    position: relative;
    height: 250px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    padding: 16px;
}

/* Analytics Cards */
.analytics-card {
    background: rgba(255, 255, 255, 0.6);
    border-radius: 16px;
    padding: 16px;
    border: 1px solid rgba(255,255,255,0.5);
}

.analytics-card h4 {
    margin: 0 0 12px 0;
    color: var(--primary);
    font-size: 16px;
}

.emotion-bar {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.emotion-label {
    flex: 1;
    font-size: 14px;
}

.emotion-value {
    width: 40px;
    text-align: right;
    font-size: 14px;
    font-weight: 500;
}

.emotion-progress {
    flex: 2;
    height: 6px;
    background: var(--surface-variant);
    border-radius: 3px;
    margin: 0 8px;
    overflow: hidden;
}

.emotion-progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* Buttons - Alive */
.btn {
    padding: 16px 32px;
    border: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Shimmer Effect */
.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: 0.5s;
}

.btn:hover::after {
    left: 100%;
    transition: 0.7s ease-in-out;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 8px 20px rgba(107, 144, 128, 0.4);
    animation: breathBtn 3s infinite ease-in-out;
}

@keyframes breathBtn {
    0% { transform: scale(1); box-shadow: 0 8px 20px rgba(107, 144, 128, 0.4); }
    50% { transform: scale(1.02); box-shadow: 0 12px 24px rgba(107, 144, 128, 0.6); }
    100% { transform: scale(1); box-shadow: 0 8px 20px rgba(107, 144, 128, 0.4); }
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 15px 30px rgba(107, 144, 128, 0.5);
    animation: none; /* Stop breathing on hover to focus */
}

.btn-secondary {
    background: linear-gradient(45deg, var(--tertiary), var(--peace));
    color: white;
    box-shadow: 0 8px 20px rgba(79, 195, 247, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 15px 30px rgba(79, 195, 247, 0.5);
}

/* Inputs & Sliders */
.slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: rgba(0,0,0,0.1);
    outline: none;
    -webkit-appearance: none;
    transition: all 0.3s ease;
}

.slider:hover {
    height: 10px;
    background: rgba(0,0,0,0.15);
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(107, 144, 128, 0.4);
    transition: all 0.3s ease;
}

.slider:hover::-webkit-slider-thumb {
    transform: scale(1.2);
    box-shadow: 0 6px 15px rgba(107, 144, 128, 0.6);
}

textarea, input[type="text"] {
    width: 100%;
    padding: 16px;
    border-radius: 16px;
    border: 2px solid rgba(0,0,0,0.05);
    background: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
    transition: all 0.3s ease;
}

textarea:focus, input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(107, 144, 128, 0.1);
    transform: scale(1.01);
}

/* Proactive Badges */
.proactive-badge {
    position: absolute;
    background: var(--joy);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(171, 71, 188, 0.4);
    animation: floatBadge 3s ease-in-out infinite;
    z-index: 10;
    pointer-events: none;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s, transform 0.5s;
}

.proactive-badge.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes floatBadge {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Breathing Exercise - Super Alive */
.breathing-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.breathing-circle {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--tertiary), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 60px rgba(79, 195, 247, 0.4);
    position: relative;
    transition: all 4s cubic-bezier(0.45, 0.05, 0.55, 0.95);
}

.breathing-circle::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    animation: ripple 4s infinite;
}

.breathing-circle.inhale {
    transform: scale(1.5);
    box-shadow: 0 0 100px rgba(79, 195, 247, 0.6);
    filter: hue-rotate(30deg);
}

.breathing-circle.exhale {
    transform: scale(0.8);
    box-shadow: 0 0 30px rgba(79, 195, 247, 0.2);
    filter: hue-rotate(0deg);
}

.breathing-text {
    font-size: 32px;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    z-index: 2;
}

@keyframes ripple {
    0% { transform: scale(0.8); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

/* FAB - Alive */
.fab {
    position: fixed;
    bottom: 110px; /* Increased from 90px */
    right: 24px;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    box-shadow: 0 8px 25px rgba(107, 144, 128, 0.5);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 99;
}

.fab:hover {
    transform: scale(1.15) rotate(90deg);
    box-shadow: 0 12px 35px rgba(107, 144, 128, 0.6);
}

.fab .material-icons {
    font-size: 32px;
}

/* Success Ping */
.success-ping {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 2000;
}

.ping-circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(102, 187, 106, 0.6);
    animation: pingExpand 1s ease-out forwards;
}

@keyframes pingExpand {
    0% { width: 0; height: 0; opacity: 1; }
    100% { width: 500px; height: 500px; opacity: 0; }
}

/* Mobile Adaptation */
@media (max-width: 480px) {
    .welcome-title { font-size: 36px; }
    .card { padding: 16px; border-radius: 20px; }
    .btn { padding: 14px 24px; width: 100%; }
    .mood-emoji { font-size: 40px; }
    .breathing-circle { width: 180px; height: 180px; }
    .bottom-nav { padding: 8px 0; }
    .nav-item { padding: 6px 12px; }
    .nav-label { font-size: 10px; }
}

/* Exercise Modals */
.exercise-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 2000;
    animation: zoomIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.exercise-modal .card {
    margin: 0;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    border: 2px solid rgba(255, 255, 255, 0.8);
}

@keyframes zoomIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.8); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

.exercise-modal h3 {
    color: var(--primary);
    margin-bottom: 24px;
    font-size: 24px;
}

.exercise-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    justify-content: flex-end;
}

/* Desktop Sidebar */
@media (min-width: 1024px) {
    .bottom-nav {
        display: flex;
        flex-direction: column;
        top: 80px;
        left: 20px;
        right: auto;
        bottom: 20px;
        width: 100px;
        height: auto;
        border-radius: 20px;
        justify-content: flex-start;
        padding-top: 40px;
        gap: 20px;
        background: rgba(255, 255, 255, 0.85);
    }

    .main-content {
        margin-left: 120px;
        max-width: calc(100% - 140px);
    }

    .nav-item.active::after {
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        bottom: auto;
        width: 4px;
        height: 20px;
        border-radius: 4px;
    }
}

/* History Lists */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.history-item {
    background: rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    padding: 16px;
    transition: all 0.3s ease;
}

.history-item:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateX(5px);
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.history-type {
    font-weight: bold;
    font-size: 16px;
}

.history-date {
    font-size: 12px;
    color: var(--on-surface-variant);
}

.history-details {
    font-size: 14px;
    color: var(--on-surface);
}

.history-notes {
    font-style: italic;
    color: var(--on-surface-variant);
    margin-top: 4px;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--on-surface-variant);
    font-size: 18px;
}

.error-state {
    text-align: center;
    padding: 20px;
    color: var(--error);
    background: rgba(255, 82, 82, 0.1);
    border-radius: 12px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(0,0,0,0.1);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Auth Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    animation: fadeIn 0.3s ease;
}

.modal-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 30px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.8);
    text-align: center;
    animation: slideInUp 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

/* Animated gradient border top */
.modal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--tertiary));
    animation: gradientFlow 3s linear infinite;
    background-size: 200% 100%;
}

@keyframes gradientFlow {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

.auth-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 30px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: pulseText 3s infinite ease-in-out;
}

@keyframes pulseText {
    0%, 100% { transform: scale(1); filter: brightness(100%); }
    50% { transform: scale(1.05); filter: brightness(110%); }
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--on-surface-variant);
    font-weight: 500;
    font-size: 14px;
    margin-left: 4px;
}

.form-input {
    width: 100%;
    padding: 16px;
    border-radius: 16px;
    border: 2px solid rgba(0,0,0,0.05);
    background: rgba(255, 255, 255, 0.5);
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-input:focus {
    background: white;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(107, 144, 128, 0.1);
    transform: translateY(-2px);
}

.switch-form {
    margin-top: 24px;
    font-size: 14px;
    color: var(--on-surface-variant);
}

.switch-form a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
    margin-left: 4px;
    position: relative;
}

.switch-form a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: right;
}

.switch-form a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Smart Breathing Enhanced Styles */
.breathing-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, #1a2a6c, #b21f1f, #fdbb2d); /* Deep calming gradient */
    background: radial-gradient(circle at center, #2b5876, #4e4376); /* Deep calming blue/purple */
    z-index: 5000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    animation: fadeIn 0.5s ease;
}

.breathing-visual-container {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 40px;
}

.breath-circle-main {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.2);
    position: absolute;
    transition: transform 0.1s linear, background-color 0.5s ease;
}

.breath-circle-inner {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.8);
    position: absolute;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
    transition: transform 0.1s linear;
}

.breath-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    animation: rotateParticles 20s linear infinite;
}

.breath-instruction-text {
    font-size: 36px;
    font-weight: 300;
    letter-spacing: 2px;
    text-align: center;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    margin-bottom: 10px;
    min-height: 50px;
}

.breath-sub-text {
    font-size: 18px;
    opacity: 0.8;
    margin-bottom: 40px;
}

.technique-selector {
    display: flex;
    gap: 12px;
    margin-bottom: 30px;
    overflow-x: auto;
    padding: 10px;
    max-width: 100%;
}

.technique-btn {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 12px 20px;
    border-radius: 30px;
    color: white;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.technique-btn.active {
    background: white;
    color: #4e4376;
    font-weight: bold;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.breath-controls {
    display: flex;
    gap: 20px;
}

.control-btn-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
}

.control-btn-icon:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: scale(1.1);
}

@keyframes rotateParticles {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Specific States */
.inhale .breath-circle-main { background: rgba(100, 255, 218, 0.3); }
.hold .breath-circle-main { background: rgba(255, 235, 59, 0.3); }
.exhale .breath-circle-main { background: rgba(255, 107, 107, 0.3); }

