/* Custom Premium CSS for CertiChecker Pro */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-color: #080c14;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --accent-success: #10b981;
    --accent-success-glow: rgba(16, 185, 129, 0.15);
    --accent-error: #ef4444;
    --accent-error-glow: rgba(239, 68, 68, 0.15);
    --accent-warning: #f59e0b;
    --accent-warning-glow: rgba(245, 158, 11, 0.15);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --font-family: 'Outfit', sans-serif;
    --shadow: 0 20px 45px rgba(0, 0, 0, 0.4);
}

/* Reset and base rules */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 40%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.06) 0px, transparent 40%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.center-card-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin: 40px 0;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-radius: 28px;
    padding: 40px;
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 550px;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 55px rgba(0, 0, 0, 0.5);
}

.glass-card::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    z-index: -1;
    border-radius: 29px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02));
    pointer-events: none;
}

/* Dashboard Panel Layout */
.dashboard-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 30px;
}

@media (min-width: 900px) {
    .dashboard-layout {
        grid-template-columns: 320px 1fr;
    }
}

.dashboard-sidebar {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 30px;
    height: fit-content;
}

.dashboard-main {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 35px;
    min-height: 500px;
}

/* Headers & Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    letter-spacing: -0.5px;
    color: #fff;
    margin-bottom: 15px;
}

h1 {
    font-size: 2.2rem;
    background: linear-gradient(135deg, #fff 40%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 1.6rem;
}

.text-gradient-success {
    background: linear-gradient(135deg, #fff 0%, var(--accent-success) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-error {
    background: linear-gradient(135deg, #fff 0%, var(--accent-error) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-bottom: 25px;
    text-align: center;
}

/* Forms & Fields */
.form-group {
    margin-bottom: 22px;
    position: relative;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 14px 16px;
    color: #fff;
    font-size: 1rem;
    font-family: var(--font-family);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: rgba(0, 0, 0, 0.5);
}

.select-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--font-family);
    text-decoration: none;
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #4f46e5 100%);
    color: #fff;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.btn-danger {
    background: linear-gradient(135deg, var(--accent-error) 0%, #dc2626 100%);
    color: #fff;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(239, 68, 68, 0.4);
}

.btn-icon {
    width: auto;
    padding: 8px 12px;
    font-size: 0.85rem;
    border-radius: 8px;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-valid {
    background: var(--accent-success-glow);
    color: var(--accent-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-revoked {
    background: var(--accent-error-glow);
    color: var(--accent-error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-expired {
    background: var(--accent-warning-glow);
    color: var(--accent-warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Status Graphics & Animations (Wow factor) */
.status-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
}

.status-icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    position: relative;
}

/* Animated validation circles */
.status-icon-wrapper.valid {
    background: var(--accent-success-glow);
    border: 2px solid var(--accent-success);
    box-shadow: 0 0 20px var(--accent-success-glow);
    animation: pulse-success 2s infinite;
}

.status-icon-wrapper.invalid, .status-icon-wrapper.revoked {
    background: var(--accent-error-glow);
    border: 2px solid var(--accent-error);
    box-shadow: 0 0 20px var(--accent-error-glow);
    animation: pulse-error 2s infinite;
}

.status-icon-wrapper.expired {
    background: var(--accent-warning-glow);
    border: 2px solid var(--accent-warning);
    box-shadow: 0 0 20px var(--accent-warning-glow);
    animation: pulse-warning 2s infinite;
}

@keyframes pulse-success {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 12px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes pulse-error {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    70% { box-shadow: 0 0 0 12px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

@keyframes pulse-warning {
    0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
    70% { box-shadow: 0 0 0 12px rgba(245, 158, 11, 0); }
    100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

/* Draw SVGs */
.status-icon-wrapper svg {
    width: 42px;
    height: 42px;
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.status-icon-wrapper.valid svg {
    stroke: var(--accent-success);
}

.status-icon-wrapper.invalid svg, .status-icon-wrapper.revoked svg {
    stroke: var(--accent-error);
}

.status-icon-wrapper.expired svg {
    stroke: var(--accent-warning);
}

/* Certificate Data List */
.data-table {
    width: 100%;
    margin-top: 15px;
    border-collapse: collapse;
}

.data-table tr {
    border-bottom: 1px solid var(--card-border);
}

.data-table tr:last-child {
    border-bottom: none;
}

.data-table td {
    padding: 14px 0;
    font-size: 0.95rem;
}

.data-label {
    color: var(--text-muted);
    font-weight: 500;
    width: 40%;
}

.data-value {
    color: #fff;
    font-weight: 600;
    text-align: right;
}

/* Contact / Support Details */
.accordion {
    margin-top: 25px;
    border-top: 1px solid var(--card-border);
    padding-top: 20px;
}

.accordion-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--accent-light);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.accordion-content {
    margin-top: 12px;
    font-size: 0.88rem;
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 16px;
    line-height: 1.5;
}

.accordion-arrow {
    transition: transform 0.3s;
}

.accordion.active .accordion-arrow {
    transform: rotate(180deg);
}

/* Admin Dashboard Elements */
.header-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 35px;
    flex-wrap: wrap;
    gap: 15px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 20px;
    text-align: left;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    margin-top: 5px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Tables in Admin */
.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--card-border);
    border-radius: 16px;
    background: rgba(0, 0, 0, 0.2);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.admin-table th {
    background: rgba(255, 255, 255, 0.02);
    padding: 16px 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-main);
    border-bottom: 1px solid var(--card-border);
    letter-spacing: 0.5px;
}

.admin-table td {
    padding: 16px 20px;
    font-size: 0.92rem;
    color: var(--text-main);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover {
    background: rgba(255, 255, 255, 0.01);
}

.action-btns {
    display: flex;
    gap: 10px;
}

/* QR Code Modal / Preview */
.qr-preview-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #fff;
    padding: 20px;
    border-radius: 16px;
    margin: 20px auto;
    width: fit-content;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.qr-caption {
    color: #4b5563;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 12px;
    text-align: center;
}

.qr-actions-container {
    display: flex;
    gap: 12px;
    margin-top: 15px;
}

/* Alerts and Notifications */
.alert {
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 25px;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
}

.alert-success {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #a7f3d0;
}

.alert-error {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fecaca;
}

/* Footer rules */
footer {
    text-align: center;
    padding: 25px;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--card-border);
    background: rgba(0, 0, 0, 0.15);
}

footer a {
    color: var(--accent-light);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Grid & Utilities */
.mb-3 { margin-bottom: 15px; }
.mt-4 { margin-top: 20px; }
.text-center { text-align: center; }
.pull-right { float: right; }
.clearfix::after {
    content: "";
    clear: both;
    display: table;
}

/* Modal styling */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(8, 12, 20, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s forwards;
}

.modal-content {
    background: var(--bg-color);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 30px;
    width: 100%;
    max-width: 450px;
    box-shadow: var(--shadow);
    position: relative;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
}

.modal-close:hover {
    color: #fff;
}