:root {
    --bg-color: #F8FAFC; /* Ice White */
    --glass-bg: #FFFFFF; /* Pure White Card */
    --glass-border: #E2E8F0; /* Soft Slate */
    --primary: #1E40AF; /* Royal Blue */
    --primary-glow: rgba(30, 64, 175, 0.1);
    --secondary: #DC2626; /* Modern Crimson */
    --text-main: #1E293B; /* Deep Slate */
    --text-muted: #64748B; /* Professional Gray */
    --input-bg: #FFFFFF;
}

* {
    box-sizing: border-box;
    max-width: 100%;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    position: relative;
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 0;
}

/* Background - Clean & Professional */
.background-globes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: #F8FAFC;
}

/* Main Container - The Crisp Professional Card */
.glass-container {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3.5rem 2.5rem;
    width: 95%; 
    max-width: 720px;
    margin: 2rem auto;
    overflow: visible;
    box-shadow: 0 20px 40px -10px rgba(30, 64, 175, 0.08); /* Soft blue-tinted shadow */
    z-index: 10;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-container:hover {
    box-shadow: 0 30px 60px -12px rgba(30, 64, 175, 0.12);
    transform: translateY(-4px);
}

/* Header */
header {
    text-align: center;
    margin-bottom: 3rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 0.8rem;
}

.logo i {
    font-size: 2.8rem;
    color: var(--primary); /* Royal Blue Icon */
}

h1 {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -1.5px;
}

.logo-white { color: var(--primary); } /* "Slide" in Royal Blue */
.logo-red { color: var(--secondary); }   /* "Wiz" in Crimson Red */

header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 400;
    max-width: 500px;
    margin: 0 auto;
}

/* Forms */
.row {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
}

@media (min-width: 769px) {
    .row {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 2rem;
    }
}

.input-group {
    margin-bottom: 1.5rem;
    background: #FFFFFF;
    padding: 1.5rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    width: auto; 
    display: block;
    position: relative;
    overflow: visible;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.input-group:hover {
    border-color: #cbd5e1;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.input-group:focus-within {
    border-color: var(--primary); /* Blue for active input */
    box-shadow: 0 0 0 4px var(--primary-glow);
    transform: translateY(-2px);
}

label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: var(--primary); /* Royal Blue Labels */
    letter-spacing: 0.5px;
    text-transform: none; /* Clean professional look */
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"] {
    width: 100%;
    max-width: 100%;
    background: #F8FAFC;
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 1.1rem 1.3rem;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: all 0.3s ease;
}

input:focus {
    background: #FFFFFF;
    border-color: var(--primary);
}

/* File Input System */
.file-custom-btn {
    width: 100%;
    max-width: 100%;
    background: #F8FAFC;
    border: 1px dashed #CBD5E1;
    color: var(--text-muted);
    padding: 1.2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    overflow: hidden;
}

.file-custom-btn i {
    color: var(--primary); /* Blue icon for upload */
}

.file-custom-btn:hover {
    background: #F1F5F9;
    border-color: var(--primary);
    color: var(--primary);
}

/* Custom Select Dropdown System */
.custom-select {
    position: relative;
    width: 100%;
}

.select-trigger {
    width: 100%;
    background: #F8FAFC;
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 1.1rem 1.3rem;
    border-radius: 12px;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.select-trigger:hover {
    background: #FFFFFF;
    border-color: var(--primary);
}

.select-options {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: 100%;
    background: #FFFFFF;
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    z-index: 1000;
    max-height: 250px;
    overflow-y: auto;
    box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.1);
    display: none;
    animation: slideIn 0.2s ease-out;
}

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

.custom-select.active .select-options {
    display: block;
}

.option {
    padding: 1.1rem 1.3rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
    color: var(--text-muted);
}

.option:hover {
    background: #F1F5F9;
    color: var(--primary);
}

.option.selected {
    background: #EFF6FF;
    color: var(--primary);
    font-weight: 600;
}

/* Toggle Switch - Royal Blue */
.toggle-group {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    background: #F1F5F9;
    padding: 1.8rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.toggle-group:hover {
    border-color: var(--primary);
    background: #EBF2FF;
}

.switch {
    position: relative;
    display: inline-block;
    width: 54px;
    height: 30px;
    flex-shrink: 0;
}

.switch input { 
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #CBD5E1;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--primary); /* Blue for active toggle */
}

input:checked + .slider:before {
    transform: translateX(24px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.toggle-info {
    display: flex;
    flex-direction: column;
}

.toggle-title {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
    color: var(--text-main);
}

.toggle-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Buttons & Actions */
button, .glow-btn, .secondary-btn {
    width: 100%;
    padding: 1.1rem;
    border: none;
    border-radius: 12px;
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    text-decoration: none;
}

#user-profile-bar button {
    width: auto !important;
    padding: 4px 8px !important;
    background: transparent !important;
}

.glow-on-hover, .glow-btn {
    background: linear-gradient(to right, #DC2626, #EF4444);
    color: white !important;
    box-shadow: 0 8px 20px -6px rgba(220, 38, 38, 0.4);
}

.glow-on-hover:hover, .glow-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px -8px rgba(220, 38, 38, 0.5);
    filter: brightness(1.1);
}

.secondary-btn {
    background: #F1F5F9;
    color: var(--text-muted);
    border: 1px solid #E2E8F0;
}

.secondary-btn:hover {
    background: #E2E8F0;
    color: var(--text-main);
}

.action-row {
    display: flex;
    gap: 1rem;
    width: 100%;
    max-width: 520px;
    margin: 0 auto;
}

.action-row > * {
    flex: 1; /* Make both buttons equal width */
}

#success-state, #error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 3rem 1.5rem;
    animation: slideIn 0.5s ease-out;
}

#success-state h3 {
    font-size: 2rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

#success-state p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 500px;
    margin-bottom: 2.5rem;
}

.success-icon {
    margin-bottom: 1.5rem;
    background: #ecfdf5;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-icon i {
    font-size: 3.5rem;
    color: #10B981;
}

.action-row {
    display: flex;
    gap: 1rem;
    width: 100%;
    max-width: 480px;
}

.error-icon {
    margin-bottom: 1.5rem;
    background: #fef2f2;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-icon i {
    font-size: 3.5rem;
    color: var(--secondary);
}

/* SVG Loader - Royal Blue */
.loader {
    width: 70px;
    height: 70px;
    margin: 0 auto 2.5rem;
}

.loader svg circle {
    fill: none;
    stroke-width: 6;
    stroke: var(--primary);
    stroke-linecap: round;
    stroke-dasharray: 150;
    stroke-dashoffset: 20;
    animation: dash 1.5s ease-in-out infinite;
}

@keyframes dash {
    0% { stroke-dasharray: 1, 200; stroke-dashoffset: 0; }
    50% { stroke-dasharray: 89, 200; stroke-dashoffset: -35px; }
    100% { stroke-dasharray: 89, 200; stroke-dashoffset: -124px; }
}

/* =============================================
   RESPONSIVE - MOBILE FIRST
   ============================================= */

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

/* --- Small phones (max 480px) --- */
@media (max-width: 480px) {
    body {
        padding: 0;
        align-items: flex-start;
    }

    .glass-container {
        width: 100% !important;
        max-width: 100% !important;
        border-radius: 0 !important;
        padding: 2rem 1.2rem !important;
        margin: 0 !important;
        min-height: 100vh;
        box-shadow: none !important;
        display: flex !important;
        flex-direction: column !important;
        justify-content: center !important;
    }

    h1 {
        font-size: 1.8rem !important;
        letter-spacing: -1px;
    }

    .logo i {
        font-size: 2rem !important;
    }

    header p, .auth-subtitle {
        font-size: 0.95rem !important;
    }

    /* Profile bar stays compact on tiny screens */
    #user-profile-bar {
        padding: 6px 12px !important;
        gap: 8px !important;
        border-radius: 30px !important;
    }

    #user-display-email, .profile-separator {
        display: none !important; /* hide email on tiny screen, show name only */
    }
    
    /* ONLY SHOW FINGERPRINT ON MOBILE */
    #login-fingerprint-toggle, #fingerprint-container, #settings-fingerprint-container {
        display: flex !important; /* or block depending on what it needs */
    }
    #settings-fingerprint-container {
        display: block !important;
    }

    .input-group {
        padding: 1.2rem !important;
        margin-bottom: 1rem !important;
    }

    label {
        font-size: 0.8rem !important;
    }

    input[type="text"],
    input[type="number"],
    input[type="email"],
    input[type="password"] {
        padding: 0.9rem 1rem !important;
        font-size: 0.95rem !important;
    }

    .toggle-group {
        padding: 1.2rem !important;
        gap: 1rem !important;
        margin-bottom: 1.5rem !important;
    }

    .toggle-title {
        font-size: 0.95rem !important;
    }

    .toggle-desc {
        font-size: 0.8rem !important;
    }

    button, .glow-btn, .secondary-btn {
        padding: 1rem !important;
        font-size: 1rem !important;
    }
    
    #user-profile-bar button {
        padding: 2px 4px !important;
    }

    .action-row {
        flex-direction: column !important;
        max-width: 100% !important;
    }

    .action-row > * {
        width: 100% !important;
    }

    .fingerprint-btn {
        width: 75px !important;
        height: 75px !important;
        font-size: 3rem !important;
    }

    #success-state, #error-state {
        padding: 2rem 1rem !important;
    }

    .success-icon, .error-icon {
        width: 80px !important;
        height: 80px !important;
    }

    .success-icon i, .error-icon i {
        font-size: 2.8rem !important;
    }
}

/* Hide fingerprint buttons on desktop/tablet (mobile-only feature) */
@media (min-width: 481px) {
    #login-fingerprint-section,
    #signup-fingerprint-section,
    #fingerprint-name-step {
        display: none !important;
    }
}

/* --- Tablets (481px - 768px) --- */
@media (min-width: 481px) and (max-width: 768px) {
    body {
        padding: 1rem 0;
    }

    .glass-container {
        width: 92% !important;
        padding: 2.5rem 2rem !important;
        border-radius: 20px !important;
    }

    h1 {
        font-size: 2.2rem !important;
    }

    #user-profile-bar {
        padding: 8px 16px !important;
        gap: 10px !important;
    }

    .action-row {
        max-width: 100% !important;
    }

    .row {
        grid-template-columns: 1fr !important;
    }
}

/* --- Desktop (769px+) --- */
@media (min-width: 769px) {
    .row {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 2rem;
    }
}


/* Authentication Section Styles */
.auth-container {
    animation: fadeIn 0.5s ease-out;
    width: 100%;
}

.auth-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
}

#fingerprint-container {
    text-align: center;
    margin-bottom: 20px;
    padding: 1.5rem;
    border-radius: 20px;
    background: #F8FAFC;
    border: 1px solid var(--glass-border);
    transition: all 0.4s ease;
}

.fingerprint-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    font-size: 3.5rem;
    margin: 0 auto;
    transition: all 0.4s ease;
}

.fingerprint-disabled {
    opacity: 0.5;
    pointer-events: none;
}

.fingerprint-disabled .fingerprint-btn {
    background: #F1F5F9;
    border: 2px dashed #CBD5E1;
    color: #94A3B8;
}

.fingerprint-disabled #fingerprint-text {
    color: #94A3B8;
}

.fingerprint-enabled {
    opacity: 1;
    pointer-events: all;
    background: #EFF6FF !important;
    border-color: #BFDBFE !important;
}

.fingerprint-enabled .fingerprint-btn {
    background: var(--primary-glow);
    border: 2px solid var(--primary);
    color: var(--primary);
    cursor: pointer;
    box-shadow: 0 0 20px rgba(30, 64, 175, 0.2);
}

.fingerprint-enabled .fingerprint-btn:hover {
    transform: scale(1.05);
    background: var(--primary);
    color: white;
    box-shadow: 0 0 30px rgba(30, 64, 175, 0.4);
}

.fingerprint-enabled #fingerprint-text {
    color: var(--primary);
}

#fingerprint-text {
    margin-top: 15px;
    font-weight: 700;
    transition: all 0.3s ease;
}

.fingerprint-scanning .fingerprint-btn {
    animation: pulse 1s infinite;
    background: var(--primary);
    color: white;
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(30, 64, 175, 0.4); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 15px rgba(30, 64, 175, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(30, 64, 175, 0); }
}

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