/* ===================================
   GLOBAL STYLES
   =================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    background-image:
        radial-gradient(circle at 12% 18%, rgba(51, 212, 255, 0.18) 0%, transparent 32%),
        radial-gradient(circle at 88% 78%, rgba(37, 242, 181, 0.14) 0%, transparent 35%),
        linear-gradient(145deg, #071226 0%, #0b1730 42%, #122544 100%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: filter var(--transition-slow);
}

body::before {
    content: "";
    position: fixed;
    inset: -120px;
    background:
        radial-gradient(circle at 15% 20%, rgba(51, 212, 255, 0.14), transparent 38%),
        radial-gradient(circle at 85% 14%, rgba(27, 139, 255, 0.14), transparent 40%),
        radial-gradient(circle at 62% 85%, rgba(37, 242, 181, 0.1), transparent 34%);
    z-index: -2;
    animation: auroraDrift 18s ease-in-out infinite alternate;
    pointer-events: none;
}

body.is-offline {
    filter: grayscale(0.4);
}

body.is-offline::before {
    content: "OFFLINE MODE";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--warning);
    color: #000;
    text-align: center;
    font-size: 10px;
    font-weight: 800;
    padding: 2px 0;
    z-index: 10000;
}

/* ===================================
   TYPOGRAPHY
   =================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-secondary);
}

/* ===================================
   BUTTONS
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    min-height: 48px;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    touch-action: manipulation;
    isolation: isolate;
}

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

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 0 36px rgba(51, 212, 255, 0.36);
}

.btn::after {
    content: "";
    position: absolute;
    inset: -40% auto auto -140%;
    width: 120%;
    height: 220%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
    transform: rotate(18deg);
    opacity: 0;
    transition: opacity var(--transition-fast);
    pointer-events: none;
    z-index: 1;
}

.btn:hover::after {
    opacity: 1;
    animation: sweep 900ms ease;
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
}

.btn-success {
    background: var(--success);
    color: var(--bg-primary);
}

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

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 16px 32px;
    font-size: var(--font-size-lg);
}

/* Button Loader */
.btn-loader {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ===================================
   FORM ELEMENTS
   =================================== */

.form-group {
    margin-bottom: var(--space-lg);
}

label {
    display: block;
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

input,
textarea,
select {
    width: 100%;
    padding: 12px 16px;
    min-height: 48px;
    font-size: 16px;
    /* 16px minimum prevents iOS zoom */
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.5); /* Stronger focus indicator */
}

select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: 44px;
    background-image:
        linear-gradient(45deg, transparent 50%, var(--text-secondary) 50%),
        linear-gradient(135deg, var(--text-secondary) 50%, transparent 50%);
    background-position:
        calc(100% - 20px) calc(50% + 1px),
        calc(100% - 14px) calc(50% + 1px);
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
}

select option {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

select option[value=""] {
    color: var(--text-muted);
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible,
button:focus-visible,
a:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.3);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-muted);
}

/* ===================================
   CARDS
   =================================== */

.card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--accent-gradient-soft);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card:hover::before {
    opacity: 0.4;
}

.card-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-xs);
}

.card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* ===================================
   TOAST NOTIFICATIONS
   =================================== */

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    min-width: 300px;
    padding: 16px 20px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transform: translateX(400px);
    transition: transform var(--transition-base);
    z-index: var(--z-tooltip);
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.warning {
    border-left: 4px solid var(--warning);
}

.toast.info {
    border-left: 4px solid var(--info);
}

/* ===================================
   UTILITIES
   =================================== */

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

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

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

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

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

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

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

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

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

.bg-success {
    background-color: var(--success-bg);
}

.bg-danger {
    background-color: var(--danger-bg);
}

.bg-warning {
    background-color: var(--warning-bg);
}

.bg-info {
    background-color: var(--info-bg);
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: var(--space-sm);
}

.mt-2 {
    margin-top: var(--space-md);
}

.mt-3 {
    margin-top: var(--space-lg);
}

.mt-4 {
    margin-top: var(--space-xl);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--space-sm);
}

.mb-2 {
    margin-bottom: var(--space-md);
}

.mb-3 {
    margin-bottom: var(--space-lg);
}

.mb-4 {
    margin-bottom: var(--space-xl);
}

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

/* ===================================
   ANIMATIONS
   =================================== */

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

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

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

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* ===================================
   LOADING STATES
   =================================== */

.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    color: var(--text-tertiary);
    text-align: center;
}

.loading-state .spinner {
    width: 48px;
    height: 48px;
    border-width: 4px;
    margin-bottom: var(--space-md);
    border-top-color: var(--accent-primary);
}

/* Skeleton Loader */
.skeleton {
    background: linear-gradient(90deg,
            rgba(255, 255, 255, 0.05) 25%,
            rgba(255, 255, 255, 0.1) 50%,
            rgba(255, 255, 255, 0.05) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
    display: block;
}

.skeleton-text {
    height: 14px;
    width: 100%;
    margin-bottom: var(--space-sm);
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: var(--space-md);
}

.skeleton-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.skeleton-card {
    height: 180px;
    width: 100%;
    border-radius: var(--radius-xl);
}

.skeleton-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.3s ease-out;
}

/* ===================================
   SCROLLBAR
   =================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}

@keyframes auroraDrift {
    0% {
        transform: translate3d(-1%, -0.5%, 0) scale(1);
    }

    100% {
        transform: translate3d(1.5%, 1.2%, 0) scale(1.05);
    }
}

@keyframes sweep {
    0% {
        transform: translateX(0) rotate(18deg);
    }

    100% {
        transform: translateX(250%) rotate(18deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}