/*
 * ViciHub - Professional UI Stylesheet
 * Clean, modern, and user-friendly
 */

/* ========================================
   CSS VARIABLES - Google-Inspired Professional Design
   ======================================== */
:root {
    /* Primary Colors - Google Blue */
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #4285f4;

    /* Background - Clean Light Theme */
    --bg-main: #f8f9fa;
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    --bg-hover: #f1f3f4;

    /* Text - Professional Gray Scale */
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-muted: #9aa0a6;

    /* Status Colors - Professional Palette */
    --success: #1e8e3e;
    --error: #d93025;
    --warning: #f29900;
    --info: #1967d2;

    /* Borders & Shadows */
    --border-color: #dadce0;
    --border-radius: 8px;
    --shadow-sm: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
    --shadow-md: 0 1px 3px 0 rgba(60,64,67,0.3), 0 4px 8px 3px rgba(60,64,67,0.15);
    --shadow-lg: 0 2px 6px 2px rgba(60,64,67,0.15), 0 8px 24px 4px rgba(60,64,67,0.15);
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Google Sans', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    font-size: 14px;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1 {
    font-size: 28px;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 22px;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.2px;
}

h3 {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    letter-spacing: 0;
}

/* ========================================
   CONTAINERS
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.container-small {
    max-width: 500px;
    margin: 0 auto;
    padding: 2rem;
}

/* ========================================
   CARDS
   ======================================== */
.card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

/* ========================================
   FORMS
   ======================================== */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
    letter-spacing: 0.2px;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="email"],
select {
    width: 100%;
    padding: 0.875rem 1rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s;
}

input[type="text"]:hover,
input[type="password"]:hover,
input[type="number"]:hover,
input[type="email"]:hover,
select:hover {
    border-color: var(--text-secondary);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    border-width: 2px;
    padding: calc(0.875rem - 1px) calc(1rem - 1px);
    box-shadow: 0 0 0 1px var(--primary);
}

input[type="text"]:disabled,
input[type="password"]:disabled,
input[type="number"]:disabled,
select:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ========================================
   BUTTONS
   ======================================== */
button,
.btn {
    padding: 0.625rem 1.5rem;
    font-size: 14px;
    font-weight: 500;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    text-decoration: none;
    text-align: center;
    letter-spacing: 0.25px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 1px 3px 0 rgba(60,64,67,0.3), 0 4px 8px 3px rgba(60,64,67,0.15);
}

.btn-secondary {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-success {
    background-color: var(--success);
    color: white;
    box-shadow: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
}

.btn-success:hover {
    background-color: #188038;
    box-shadow: 0 1px 3px 0 rgba(60,64,67,0.3), 0 4px 8px 3px rgba(60,64,67,0.15);
}

.btn-danger {
    background-color: var(--error);
    color: white;
    box-shadow: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
}

.btn-danger:hover {
    background-color: #b3181f;
    box-shadow: 0 1px 3px 0 rgba(60,64,67,0.3), 0 4px 8px 3px rgba(60,64,67,0.15);
}

.btn-block {
    width: 100%;
    display: block;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ========================================
   RADIO & CHECKBOX
   ======================================== */
.radio-group,
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.radio-item,
.checkbox-item {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s;
}

.radio-item:hover,
.checkbox-item:hover {
    background-color: var(--bg-hover);
    border-color: var(--primary);
}

.radio-item input[type="radio"],
.checkbox-item input[type="checkbox"] {
    margin-right: 0.75rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* ========================================
   TABLES
   ======================================== */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

thead {
    background-color: var(--bg-hover);
}

th {
    padding: 0.875rem 1rem;
    text-align: left;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 0.875rem 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
}

tbody tr:hover {
    background-color: var(--bg-hover);
}

/* ========================================
   ALERTS & NOTIFICATIONS
   ======================================== */
.alert {
    padding: 1rem 1rem 1rem 1.5rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    border-left: 4px solid;
    font-size: 14px;
}

.alert-success {
    background-color: #e6f4ea;
    border-left-color: var(--success);
    color: #137333;
}

.alert-error {
    background-color: #fce8e6;
    border-left-color: var(--error);
    color: #a50e0e;
}

.alert-warning {
    background-color: #fef7e0;
    border-left-color: var(--warning);
    color: #b06000;
}

.alert-info {
    background-color: #e8f0fe;
    border-left-color: var(--info);
    color: #185abc;
}

/* ========================================
   LOADING SPINNER
   ======================================== */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   MODAL/OVERLAY
   ======================================== */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.overlay.active {
    display: flex;
}

.modal {
    background-color: var(--bg-card);
    border-radius: 8px;
    padding: 1.5rem;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

/* ========================================
   LOG CONTAINER
   ======================================== */
.log-container {
    max-height: 400px;
    overflow-y: auto;
    background-color: #f8f9fa;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1rem;
}

.log-entry {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    font-family: 'Roboto Mono', 'Courier New', monospace;
    font-size: 13px;
    border-left: 3px solid transparent;
}

.log-info {
    background-color: #e8f0fe;
    border-left-color: var(--info);
    color: #185abc;
}

.log-success {
    background-color: #e6f4ea;
    border-left-color: var(--success);
    color: #137333;
}

.log-error {
    background-color: #fce8e6;
    border-left-color: var(--error);
    color: #a50e0e;
}

.log-warning {
    background-color: #fef7e0;
    border-left-color: var(--warning);
    color: #b06000;
}

/* ========================================
   HEADER
   ======================================== */
.header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-title {
    font-size: 22px;
    font-weight: 400;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.text-center {
    text-align: center;
}

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

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.flex {
    display: flex;
}

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

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* ========================================
   COUNTDOWN TIMER
   ======================================== */
#countdown-section {
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

#countdown-timer {
    display: inline-block;
    min-width: 2ch;
    font-variant-numeric: tabular-nums;
}

#go-now-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   PROGRESS INDICATORS
   ======================================== */
.progress-container {
    text-align: center;
    margin-bottom: 1rem;
}

.progress-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary);
    margin: 0 auto;
    animation: spin 1s linear infinite;
}

.status-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    transition: all 0.3s ease;
}

.status-indicator.active {
    background-color: var(--primary);
    box-shadow: 0 0 8px rgba(26, 115, 232, 0.4);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    .card {
        padding: 1.5rem;
    }
}