/* Global Variables & Base Styles - Dark theme matching home page */
:root {
    /* Dark theme colors matching home page (slate-950 palette) */
    --slate-950: #020617;
    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;

    /* Gradient colors from home page */
    --violet-500: #8b5cf6;
    --violet-400: #a78bfa;
    --cyan-500: #06b6d4;
    --cyan-400: #22d3ee;
    --emerald-500: #10b981;
    --emerald-400: #34d399;

    /* Design system variables */
    --background: var(--slate-950);
    --foreground: #ffffff;
    --card: rgba(30, 41, 59, 0.6); /* slate-800/60 */
    --card-foreground: #ffffff;
    --primary: var(--violet-500);
    --primary-foreground: #ffffff;
    --secondary: var(--slate-800);
    --secondary-foreground: #ffffff;
    --muted: var(--slate-700);
    --muted-foreground: var(--slate-400);
    --accent: var(--cyan-500);
    --accent-foreground: #ffffff;
    --border: rgba(100, 116, 139, 0.3); /* slate-500/30 */
    --input: var(--slate-800);
    --ring: var(--violet-400);
    --radius: 0.75rem;

    /* Typography matching main site */
    --font-work-sans: 'Work Sans', system-ui, sans-serif;
    --font-open-sans: 'Open Sans', serif;
    --font-sans: var(--font-work-sans);
    --font-serif: var(--font-open-sans);

    /* Auth page specific colors */
    --auth-background: var(--slate-950);
    --auth-card: rgba(30, 41, 59, 0.6);
    --auth-card-border: rgba(139, 92, 246, 0.3); /* violet-500/30 */
    --auth-primary: var(--violet-500);
    --auth-primary-hover: var(--violet-400);
    --auth-accent: var(--cyan-500);

    /* Glass morphism effects */
    --backdrop-blur: blur(16px);
    --auth-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --auth-glow: 0 0 50px rgba(139, 92, 246, 0.3);
    --transition-standard: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-sans);
}

body {
    min-height: 100vh;
    color: var(--foreground);
    overflow-x: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    position: relative;
    background: var(--auth-background);
    font-feature-settings: "rlig" 1, "calt" 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Animated Background & Decorative Elements - Dark theme with gradients */
.animated-background {
    position: fixed;
    inset: 0;
    z-index: -10;
    background: linear-gradient(135deg, var(--slate-950) 0%, var(--slate-900) 50%, var(--slate-950) 100%);
    background-size: 200% 200%;
    animation: gradientAnimation 20s ease infinite;
}

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

.decorative-elements {
    position: fixed;
    inset: 0;
    z-index: -5;
    overflow: hidden;
    pointer-events: none;
}

.circle-blur {
    position: absolute;
    border-radius: 50%;
    filter: blur(8rem);
    opacity: 0.1;
}

.circle-purple {
    top: 10%;
    left: 10%;
    width: 32rem;
    height: 32rem;
    background: linear-gradient(135deg, var(--violet-500), var(--violet-400));
    animation: float 8s ease-in-out infinite;
}

.circle-accent {
    bottom: 10%;
    right: 10%;
    width: 24rem;
    height: 24rem;
    background: linear-gradient(135deg, var(--cyan-500), var(--emerald-500));
    animation: float 12s ease-in-out infinite reverse;
}

.floating-icon {
    position: absolute;
    color: rgba(255, 255, 255, 0.1);
    font-size: 2.5rem;
}

.floating-icon.instagram {
    top: 20%;
    right: 20%;
    animation: float 8s ease-in-out infinite;
}

.floating-icon.facebook {
    bottom: 20%;
    left: 15%;
    animation: float 10s ease-in-out infinite 1s;
}

.floating-icon.twitter {
    top: 40%;
    left: 10%;
    font-size: 2rem;
    animation: float 7s ease-in-out infinite 0.5s;
}

.floating-icon.tiktok {
    top: 60%;
    right: 15%;
    font-size: 2.2rem;
    animation: float 9s ease-in-out infinite 1.2s;
}

.floating-icon.youtube {
    bottom: 30%;
    right: 10%;
    font-size: 2.8rem;
    animation: float 9s ease-in-out infinite 1.5s;
}

.floating-icon.spotify {
    top: 70%;
    left: 30%;
    font-size: 2.2rem;
    animation: float 8s ease-in-out infinite 0.8s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* Container & Layout */
.container {
    width: 100%;
    max-width: 1200px;
    min-height: calc(100vh - 4rem);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem;
}

.top-actions {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 10;
}

.home-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    border-radius: 2rem;
    background-color: hsla(0, 0%, 100%, 0.1);
    backdrop-filter: blur(5px);
    transition: var(--transition-standard);
}

.home-btn:hover {
    background-color: hsla(0, 0%, 100%, 0.2);
    transform: translateY(-2px);
}

.home-btn i {
    font-size: 0.85rem;
}

/* Auth Card - Glass morphism matching home page */
.auth-card {
    width: 100%;
    max-width: 500px;
    background: var(--auth-card);
    backdrop-filter: var(--backdrop-blur);
    border-radius: var(--radius);
    box-shadow: var(--auth-shadow);
    border: 2px solid var(--auth-card-border);
    padding: 3rem;
    text-align: center;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transition: var(--transition-standard);
}

.auth-card:hover {
    border-color: var(--violet-400);
    box-shadow: var(--auth-glow);
    transform: translateY(-2px);
}

.logo-section {
    margin-bottom: 0;
}

.logo-badge {
    display: inline-flex;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--violet-500), var(--cyan-500), var(--emerald-500));
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    transition: var(--transition-standard);
    box-shadow: var(--auth-shadow);
    position: relative;
    overflow: hidden;
}

.logo-badge::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    transition: var(--transition-standard);
    opacity: 0;
}

.logo-badge:hover::before {
    opacity: 1;
    animation: shimmer 1.5s ease-in-out;
}

.logo-badge:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--auth-glow);
}

.brand-title {
    font-weight: 700;
    color: #ffffff;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
    font-family: var(--font-sans);
    position: relative;
    z-index: 1;
}

.brand-title .highlight {
    position: relative;
    display: inline-block;
    font-weight: 800;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.brand-subtitle {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    font-family: var(--font-serif);
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid hsla(0, 0%, 100%, 0.1);
    padding-bottom: 1rem;
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    color: var(--text-color);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition-standard);
}

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

.tab-btn:hover:not(.active) {
    background-color: hsla(0, 0%, 100%, 0.05);
}

.tab-btn i {
    font-size: 0.9rem;
}

/* Form Containers */
.form-container {
    display: none;
}

.form-container.active {
    display: block;
    animation: fadeIn 0.5s;
}

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

.form-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.form-subtitle {
    font-size: 0.9rem;
    color: var(--muted-text);
    margin-bottom: 1.5rem;
}

/* Form Elements */
.auth-form {
    text-align: left;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.input-wrapper {
    position: relative;
    background: var(--slate-800);
    border-radius: var(--radius);
    transition: var(--transition-standard);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
}

.input-wrapper:focus-within {
    border-color: var(--violet-400);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
    background: rgba(30, 41, 59, 0.8);
}

.input-icon {
    position: absolute;
    top: 50%;
    left: 0.875rem;
    transform: translateY(-50%);
    color: var(--muted-foreground);
    font-size: 0.875rem;
    pointer-events: none;
}

input {
    width: 100%;
    background: transparent;
    border: none;
    padding: 0.625rem 0.875rem 0.625rem 2.25rem;
    color: var(--foreground);
    font-size: 0.875rem;
    font-family: var(--font-sans);
    outline: none;
}

input::placeholder {
    color: var(--muted-foreground);
}

input:focus {
    outline: none;
}

.password-toggle {
    position: absolute;
    top: 50%;
    right: 1rem;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--muted-text);
    cursor: pointer;
}

.password-toggle:hover {
    color: var(--primary-color);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.checkbox-wrapper input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    height: 18px;
    width: 18px;
    background-color: hsla(0, 0%, 100%, 0.1);
    border: 1px solid hsla(0, 0%, 100%, 0.2);
    border-radius: 4px;
    margin-right: 0.5rem;
    position: relative;
}

.checkbox-wrapper input:checked ~ .checkmark {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid var(--text-color);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-wrapper input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-text {
    font-size: 0.85rem;
    color: var(--muted-text);
}

.terms-link {
    color: var(--primary-color);
    text-decoration: none;
}

.terms-link:hover {
    text-decoration: underline;
}

.forgot-password {
    color: var(--primary-color);
    font-size: 0.85rem;
    text-decoration: none;
}

.forgot-password:hover {
    text-decoration: underline;
}

/* Buttons - Gradient style matching home page */
.submit-btn {
    width: 100%;
    height: 3rem;
    padding: 0.75rem 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--violet-500), var(--cyan-500));
    border: none;
    border-radius: var(--radius);
    color: #ffffff;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-standard);
    box-shadow: var(--auth-shadow);
    outline: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.submit-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: var(--transition-standard);
}

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

.submit-btn:hover {
    background: linear-gradient(135deg, var(--violet-400), var(--cyan-400));
    transform: translateY(-2px);
    box-shadow: var(--auth-glow);
}

.submit-btn:focus-visible {
    outline: 2px solid var(--violet-400);
    outline-offset: 2px;
}

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

.submit-btn:disabled {
    pointer-events: none;
    opacity: 0.5;
    background: var(--slate-700);
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
}

.divider:before,
.divider:after {
    content: "";
    flex: 1;
    border-bottom: 1px solid hsla(0, 0%, 100%, 0.1);
}

.divider span {
    margin: 0 10px;
    font-size: 0.85rem;
    color: var(--muted-text);
}

/* Social Login */
.social-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    background-color: hsla(0, 0%, 100%, 0.05);
    border: 1px solid hsla(0, 0%, 100%, 0.1);
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-standard);
}

.social-btn:hover {
    background-color: hsla(0, 0%, 100%, 0.1);
    transform: translateY(-2px);
}

.google-icon {
    width: 1.25rem;
    height: 1.25rem;
}

/* Trust Indicators */
.trust-indicators {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--muted-text);
}

.trust-item i {
    color: var(--auth-primary);
}

/* Premium Partners */
.premium-partners {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.partners-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 0.5rem;
    font-family: var(--font-sans);
}

.partners-subtitle {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    margin-bottom: 1rem;
    font-family: var(--font-serif);
}

.partners-list {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.partner-link {
    text-decoration: none;
    transition: var(--transition-standard);
}

.partner-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius);
    transition: var(--transition-standard);
    backdrop-filter: blur(8px);
}

.partner-item:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: var(--violet-400);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.2);
}

.partner-icon {
    font-size: 0.875rem;
    color: var(--violet-400);
    transition: var(--transition-standard);
}

.partner-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--foreground);
    font-family: var(--font-sans);
}

.partner-item:hover .partner-icon {
    color: var(--cyan-400);
    transform: scale(1.1);
}

.partner-item:hover .partner-name {
    color: var(--violet-400);
}

/* Animations from main site */
@keyframes glow-pulse {
    0%, 100% {
        filter: drop-shadow(0 0 0.5rem var(--primary-color));
    }
    50% {
        filter: drop-shadow(0 0 1rem var(--primary-color));
    }
}

.animate-glow {
    animation: glow-pulse 2s ease-in-out infinite;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .auth-card {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: 1.5rem;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .trust-indicators {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .partners-list {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .partner-item {
        width: 100%;
        max-width: 200px;
        justify-content: center;
    }
}