/* ===================================
   HealthAlpha Online Consultation - Main Stylesheet
   Modern Dark Theme with Glassmorphism
=================================== */

:root {
    /* Colors */
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #10b981;
    --secondary-light: #34d399;
    --accent: #f472b6;
    --danger: #ef4444;
    --warning: #f59e0b;

    /* Dark Theme */
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #252542;
    --bg-card: rgba(26, 26, 46, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.05);

    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    /* Borders */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(99, 102, 241, 0.5);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* 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: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

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

.particles::before,
.particles::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.particles::before {
    background: var(--primary);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.particles::after {
    background: var(--secondary);
    bottom: -100px;
    left: -100px;
    animation-delay: -10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(50px, 50px) rotate(90deg);
    }

    50% {
        transform: translate(0, 100px) rotate(180deg);
    }

    75% {
        transform: translate(-50px, 50px) rotate(270deg);
    }
}

/* Container */
.container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

.logo-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
    }

    50% {
        box-shadow: 0 0 0 15px rgba(99, 102, 241, 0);
    }
}

.logo-text {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
}

/* Cards */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-title {
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.card-subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

/* Role Buttons */
.role-buttons {
    display: grid;
    gap: var(--spacing-lg);
}

.role-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    background: var(--bg-glass);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-primary);
}

.role-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.role-btn.doctor-btn:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.role-btn.patient-btn:hover {
    border-color: var(--secondary);
    background: rgba(16, 185, 129, 0.1);
}

.role-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.doctor-btn .role-icon {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.patient-btn .role-icon {
    background: linear-gradient(135deg, var(--secondary), #059669);
}

.role-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.role-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.role-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Form Card */
.form-card {
    position: relative;
}

.back-btn {
    position: absolute;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

.back-btn svg {
    width: 18px;
    height: 18px;
}

.form-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-top: var(--spacing-lg);
}

.form-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.form-icon.doctor {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.form-icon.patient {
    background: linear-gradient(135deg, var(--secondary), #059669);
}

.form-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

.form-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

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

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

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

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-normal);
    text-decoration: none;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn svg {
    width: 20px;
    height: 20px;
}

/* Success Card */
.success-card {
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--secondary), #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }

    50% {
        transform: scale(1.1);
    }

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

.success-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

.success-card h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.success-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.room-id-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.room-id-display span {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'Monaco', 'Consolas', monospace;
    letter-spacing: 2px;
    color: var(--primary-light);
}

.copy-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

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

.copy-btn svg {
    width: 18px;
    height: 18px;
}

/* Footer */
.footer {
    margin-top: var(--spacing-2xl);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Animations */
.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.slide-in {
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

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

/* Responsive */
@media (max-width: 640px) {
    .container {
        padding: var(--spacing-lg);
    }

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

    .logo-text {
        font-size: 1.5rem;
    }

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

    .role-icon {
        width: 56px;
        height: 56px;
    }

    .role-icon svg {
        width: 28px;
        height: 28px;
    }
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-xl);
    color: var(--text-primary);
    font-size: 0.875rem;
    z-index: 1000;
    animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

    to {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}