/* ============================================================
   AURA — Components: Buttons, Cards, Nav, Footer, Forms, etc.
   ============================================================ */

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    font-weight: 600;
    transition: all var(--ease-base);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--color-text-on-primary);
    box-shadow: 0 2px 8px rgba(20, 184, 166, 0.25);
}

.btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(20, 184, 166, 0.35);
    color: var(--color-text-on-primary);
}

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

.btn--ghost:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-ghost);
}

.btn--lg {
    padding: 16px 36px;
    font-size: var(--fs-base);
    border-radius: var(--radius-lg);
}

.btn--sm {
    padding: 8px 20px;
    font-size: var(--fs-xs);
}

.btn--dark {
    background: var(--color-text);
    color: #fff;
}

.btn--dark:hover {
    background: #1e293b;
    color: #fff;
    transform: translateY(-1px);
}

/* ── Navigation ── */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    transition: all var(--ease-base);
    background: transparent;
}

.nav--scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-text);
}

.nav__logo-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    color: #fff;
}

.nav__logo-text {
    font-size: var(--fs-lg);
    font-weight: 800;
    letter-spacing: -0.5px;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: var(--sp-xl);
}

.nav__link {
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--ease-fast);
    text-decoration: none;
}

.nav__link:hover,
.nav__link--active {
    color: var(--color-primary);
}

.nav__cta {
    margin-left: var(--sp-md);
}

.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 24px;
    padding: 4px 0;
    cursor: pointer;
    background: none;
    border: none;
}

.nav__burger span {
    display: block;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--ease-base);
}

.nav__burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__burger.active span:nth-child(2) {
    opacity: 0;
}

.nav__burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Scroll progress bar */
.scroll-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 0.1s linear;
}

/* ── Footer ── */
.footer {
    background: #0f172a;
    color: rgba(255, 255, 255, 0.7);
    padding: var(--sp-4xl) 0 var(--sp-2xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--sp-3xl);
    margin-bottom: var(--sp-3xl);
}

.footer__brand {
    max-width: 300px;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: var(--sp-md);
    text-decoration: none;
    color: #fff;
}

.footer__logo .nav__logo-icon {
    width: 32px;
    height: 32px;
    font-size: 16px;
}

.footer__logo-text {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: #fff;
}

.footer__desc {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    margin-bottom: var(--sp-md);
}

.footer__developer {
    font-size: var(--fs-xs);
    color: rgba(255, 255, 255, 0.35);
    margin-top: var(--sp-md);
}

.footer__developer a {
    color: rgba(255, 255, 255, 0.5);
}

.footer__developer a:hover {
    color: var(--color-primary);
}

.footer__col h4 {
    color: #fff;
    font-size: var(--fs-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--sp-lg);
}

.footer__col ul {
    display: flex;
    flex-direction: column;
    gap: var(--sp-sm);
}

.footer__col a {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--ease-fast);
}

.footer__col a:hover {
    color: var(--color-primary);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: var(--sp-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--sp-md);
}

.footer__copy {
    font-size: var(--fs-xs);
    color: rgba(255, 255, 255, 0.35);
}

/* ── Cards ── */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
    transition: all var(--ease-base);
}

.card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--sp-md);
}

.card__icon--teal    { background: rgba(20, 184, 166, 0.08); color: var(--color-primary); }
.card__icon--green   { background: rgba(16, 185, 129, 0.08); color: var(--color-success); }
.card__icon--purple  { background: rgba(99, 102, 241, 0.08); color: var(--color-secondary); }
.card__icon--amber   { background: rgba(245, 158, 11, 0.08); color: var(--color-warning); }
.card__icon--sky     { background: rgba(14, 165, 233, 0.08); color: var(--color-accent); }

.card__title {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--sp-sm);
}

.card__text {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: var(--sp-md);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-primary);
}

.card__link:hover {
    gap: 10px;
}

/* ── Badge ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--fs-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge--teal {
    background: rgba(20, 184, 166, 0.08);
    color: var(--color-primary-dark);
    border: 1px solid rgba(20, 184, 166, 0.15);
}

.badge--purple {
    background: rgba(99, 102, 241, 0.08);
    color: var(--color-secondary);
    border: 1px solid rgba(99, 102, 241, 0.15);
}

/* ── Visual Panel (feature demos) ── */
.vpanel {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-lg);
    overflow: hidden;
}

.vpanel__title {
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--sp-md);
}

/* ── Stat Box ── */
.stat-box {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--sp-md);
    text-align: center;
}

.stat-box__val {
    font-size: var(--fs-2xl);
    font-weight: 800;
    line-height: 1;
}

.stat-box__label {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-top: 4px;
}

.stat-grid {
    display: grid;
    gap: var(--sp-sm);
}

.stat-grid--2 { grid-template-columns: repeat(2, 1fr); }
.stat-grid--3 { grid-template-columns: repeat(3, 1fr); }
.stat-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ── Progress Bar ── */
.progress-bar {
    margin-bottom: var(--sp-sm);
}

.progress-bar__header {
    display: flex;
    justify-content: space-between;
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-bottom: 6px;
}

.progress-bar__track {
    height: 6px;
    border-radius: 3px;
    background: var(--color-bg-tertiary);
    overflow: hidden;
}

.progress-bar__fill {
    height: 100%;
    border-radius: 3px;
    background: var(--gradient-primary);
    transition: width var(--ease-slow);
}

/* ── Phone Mockup ── */
.phone-mockup {
    width: 260px;
    height: 520px;
    border-radius: 32px;
    border: 3px solid var(--color-border);
    background: #0f172a;
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-xl);
    margin: 0 auto;
}

.phone-mockup__notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 24px;
    background: #0f172a;
    border-radius: 0 0 16px 16px;
    z-index: 10;
}

.phone-mockup__screen {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 29px;
}

.phone-mockup__label {
    text-align: center;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-top: var(--sp-md);
}

/* ── Forms ── */
.form-group {
    margin-bottom: var(--sp-lg);
}

.form-label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--sp-sm);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    transition: border-color var(--ease-fast), box-shadow var(--ease-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ── Accordion ── */
.accordion__item {
    border-bottom: 1px solid var(--color-border);
}

.accordion__trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-lg) 0;
    font-size: var(--fs-base);
    font-weight: 600;
    color: var(--color-text);
    text-align: left;
    cursor: pointer;
    background: none;
    border: none;
}

.accordion__icon {
    width: 24px;
    height: 24px;
    transition: transform var(--ease-base);
    flex-shrink: 0;
    color: var(--color-text-muted);
}

.accordion__item.active .accordion__icon {
    transform: rotate(45deg);
}

.accordion__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--ease-slow);
}

.accordion__item.active .accordion__content {
    max-height: 500px;
}

.accordion__body {
    padding-bottom: var(--sp-lg);
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ── Comparison Table ── */
.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 16px 20px;
    text-align: left;
    font-size: var(--fs-sm);
    border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
    background: var(--color-bg-secondary);
    font-weight: 600;
    color: var(--color-text);
}

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

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

.comparison-table .check {
    color: var(--color-success);
    font-weight: 700;
}

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

.comparison-table .partial {
    color: var(--color-warning);
}

/* ── Ticker / Marquee ── */
.ticker {
    overflow: hidden;
    white-space: nowrap;
    padding: var(--sp-xl) 0;
}

.ticker__track {
    display: inline-flex;
    gap: var(--sp-3xl);
    animation: ticker 30s linear infinite;
}

.ticker__item {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-sm);
    padding: 8px 20px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    flex-shrink: 0;
}

@keyframes ticker {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ── Pricing Card ── */
.pricing-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--sp-2xl);
    display: flex;
    flex-direction: column;
    position: relative;
}

.pricing-card--featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.pricing-card--featured::before {
    content: 'Recommended';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--gradient-primary);
    color: #fff;
    font-size: var(--fs-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-card__name {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--sp-sm);
}

.pricing-card__price {
    font-size: var(--fs-4xl);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--sp-xs);
}

.pricing-card__period {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--sp-lg);
}

.pricing-card__features {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--sp-sm);
    margin-bottom: var(--sp-xl);
}

.pricing-card__feature {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
}

.pricing-card__feature svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

/* ── Testimonial Card ── */
.testimonial-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-xl);
}

.testimonial-card__quote {
    font-size: var(--fs-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--sp-lg);
    font-style: italic;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--sp-md);
}

.testimonial-card__avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-lg);
    font-weight: 700;
    color: #fff;
}

.testimonial-card__name {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text);
}

.testimonial-card__role {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}