:root {
    --bg-dark: #1a102b;
    --bg-darker: #130b21;
    --bg-gradient: linear-gradient(135deg, #1a102b 0%, #2d1457 100%);
    --accent: #8b5cf6;
    --accent-hover: #a78bfa;
    --accent-glow: rgba(139, 92, 246, 0.4);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --glass-blur: blur(12px);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

h1,
h2,
h3,
.logo {
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

/* Background Glow Effects */
.glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-gradient);
    z-index: -1;
}

.glow-bg::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    z-index: -1;
}

.glow-bg::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(192, 132, 252, 0.1) 0%, transparent 70%);
    z-index: -1;
}

/* Header */
header {
    padding: 1.5rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
}

.logo-icon {
    color: var(--accent);
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent);
}

.credits {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    border: 1px solid var(--card-border);
}

.credits-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.credits-value {
    font-weight: 700;
    color: var(--accent);
}

.credits-badge {
    background: var(--accent);
    color: white;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.1rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
}

/* Main Layout */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.hero {
    text-align: center;
    margin-bottom: 4rem;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.text-gradient {
    background: linear-gradient(to right, #a78bfa, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

/* Grid Tools */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 5rem;
}

@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.5rem;
    }
}

/* Tool Cards */
.tool-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 2rem;
    backdrop-filter: var(--glass-blur);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.tool-card:hover {
    border-color: rgba(139, 92, 246, 0.3);
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
    transform: translateY(-5px);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.card-header i {
    width: 48px;
    height: 48px;
    padding: 12px;
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent);
    border-radius: 12px;
}

.card-header h2 {
    font-size: 1.5rem;
}

.card-body {
    flex-grow: 1;
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

input[type="text"],
textarea {
    width: 100%;
    background: #2d1457;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 0.8rem 1rem;
    color: white;
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

select {
    width: 100%;
    background: #2d1457;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 0.8rem 1rem;
    color: white;
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.2rem;
}

select option {
    background: #2d1457;
    color: white;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent);
    background: rgba(45, 20, 87, 0.9);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.btn-primary {
    width: 100%;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 1rem;
    font-weight: 700;
    font-family: 'Outfit', sans-serif;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 8px 24px -6px var(--accent);
    transform: scale(1.02);
}

.btn-primary:active {
    transform: scale(0.98);
}

/* Results Section */
.results-container {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
    display: none;
    /* Shown via JS */
}

.result-item {
    margin-bottom: 1.5rem;
    animation: fadeIn 0.4s ease forwards;
}

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

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

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.result-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.copy-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition);
}

.copy-btn:hover {
    color: var(--accent);
    background: rgba(139, 92, 246, 0.1);
}

.result-box {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1rem;
    position: relative;
    word-break: break-word;
}

.char-counter {
    position: absolute;
    bottom: -1.4rem;
    right: 0;
    font-size: 0.75rem;
    font-weight: 600;
}

.counter-valid {
    color: var(--success);
}

.counter-warning {
    color: var(--warning);
}

.counter-invalid {
    color: var(--error);
}

.status-msg.counter-valid {
    color: var(--success);
}

.status-msg.counter-warning {
    color: var(--warning);
}

.status-msg.counter-invalid {
    color: var(--error);
}

.score-badge {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 700;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Guidelines Section */
.guidelines {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem;
    backdrop-filter: var(--glass-blur);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.section-title i {
    color: var(--accent);
}

.guidelines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.guide-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    border: 1px solid var(--card-border);
}

.guide-item h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.guide-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.guide-value .unit {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-muted);
}

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

/* Footer */
footer {
    padding: 4rem 2rem;
    border-top: 1px solid var(--card-border);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
}

.social-links i:hover {
    color: var(--accent);
}

/* Loading State */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, .3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 7, 21, 0.85);
    backdrop-filter: blur(12px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--bg-darker);
    border: 1px solid var(--card-border);
    border-radius: 28px;
    padding: 3rem;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    transform: translateY(30px);
    transition: var(--transition);
    text-align: center;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.dashboard-blur {
    filter: blur(8px);
    pointer-events: none;
    user-select: none;
    transition: filter 0.3s ease;
}

#txn-id-modal {
    margin-top: 1rem;
    margin-bottom: 1.5rem;
}

.modal-header {
    margin-bottom: 2rem;
}

.modal-header i {
    width: 64px;
    height: 64px;
    padding: 16px;
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent);
    border-radius: 20px;
    margin-bottom: 1.5rem;
}

.modal-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.modal-header p {
    color: var(--text-muted);
    font-size: 1rem;
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.modal-close:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}