/* ===================================
   RESPONSIVE STYLES
   AppSec Landing - Codeby School
   Mobile-first approach
   =================================== */

/* ===========================
   MOBILE (320px - 1023px)
   Base styles
   =========================== */

/* Header mobile */
@media (max-width: 1024px) {
    /* Prevent horizontal scroll */
    html, body {
        overflow-x: hidden;
    }

    header nav {
        padding: 1rem 1rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid var(--border-color);
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
        z-index: 999;
    }

    .nav-links.mobile-open {
        display: flex;
    }

    .nav-links .cta-button {
        width: 100%;
        text-align: center;
    }

    .mobile-menu {
        display: flex;
        flex-direction: column;
        flex-shrink: 0;
        margin-left: auto;
    }

    /* Hero mobile - Split Layout */
    .hero {
        padding: var(--spacing-md) var(--container-padding);
        min-height: auto;
        margin-top: 70px;
    }

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

    .hero-content {
        padding-right: 0;
    }

    .hero-visual {
        display: none;
    }

    /* Show promo block on mobile (override hero-visual hidden) */
    .hero-visual:has(.promo-block) {
        display: flex !important;
    }

    /* Hide terminal on mobile during promo */
    .hero-visual .terminal {
        display: none !important;
    }

    /* Promo block mobile styles */
    .promo-block {
        max-width: 100%;
    }

    .promo-title {
        font-size: 1.3rem;
    }

    .promo-subtitle {
        font-size: 0.95rem;
    }

    .promo-code {
        font-size: 1.3rem;
        padding: 0.6rem 1.2rem;
    }

    .promo-cta {
        padding: 0.7rem 1.2rem;
        font-size: 0.95rem;
    }

    .promo-courses {
        font-size: 0.85rem;
    }

    .hero-label {
        font-size: 0.963rem; /* +27% from 0.75rem */
    }

    .hero__title {
        font-size: 1.2075rem; /* +20% from 1rem */
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .hero__buttons .btn {
        width: 100%;
    }

    .hero__facts {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .hero__fact {
        text-align: center;
    }

    .hero__fact strong {
        font-size: 1.1rem;
    }

    /* Hero features mobile */
    .hero-features {
        margin-bottom: 1.5rem;
    }

    .feature-item {
        font-size: 0.9rem;
    }

    /* Hero buttons mobile */
    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .cta-button,
    .hero-buttons .secondary-button {
        width: 100%;
        text-align: center;
    }

    /* Trust badges mobile */
    .trust-badges {
        flex-direction: column;
        gap: 1rem;
    }

    /* Stats section mobile */
    .stats {
        padding: 2rem 1rem;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .stat-card {
        padding: 1.5rem 1rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    /* Countdown mobile */
    .countdown {
        padding: 1rem;
        margin-left: 0;
        margin-right: 0;
    }

    .countdown__wrapper {
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .countdown__item {
        flex: 1;
        min-width: auto;
        max-width: 70px;
    }

    .countdown__value {
        font-size: 1.5rem;
    }

    .countdown__label {
        font-size: 0.65rem;
    }

    /* Price block mobile */
    .price-block__main {
        flex-direction: column;
        text-align: center;
    }

    .price-block__current {
        font-size: 2rem;
    }

    /* Toggle mobile */
    .toggle {
        width: 100%;
    }

    .toggle-btn {
        flex: 1;
        padding: 0.75rem 1rem;
        font-size: var(--font-size-sm);
    }

    /* Grid mobile */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    /* Cards mobile */
    .card {
        padding: 1.5rem;
    }

    /* Section mobile */
    .section {
        padding: var(--spacing-lg) 0;
    }

    .section-title h2 {
        font-size: 1.75rem;
    }

    /* Enrollment form mobile */
    .enrollment-form {
        padding: 0 0.5rem;
    }

    .form-checkbox label {
        font-size: 0.8rem;
    }

    .submit-tooltip {
        font-size: 0.75rem;
        padding: 0.5rem 1rem;
    }

    /* Final CTA mobile */
    .final-cta {
        padding: 3rem 1rem;
    }

    /* Footer mobile */
    .footer__links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    /* Scroll to top - hide on mobile */
    .scroll-to-top {
        width: 40px;
        height: 40px;
        bottom: 20px;
        left: 20px;
    }

    /* Accordion mobile */
    .accordion__header {
        padding: 1rem;
        font-size: 1rem;
    }

    .accordion__body {
        padding: 0 1rem 1rem;
    }

    /* Tabs mobile */
    .tabs__nav {
        gap: 0.25rem;
    }

    .tabs__btn {
        padding: 0.75rem 1rem;
        font-size: var(--font-size-sm);
    }

    /* Swipeable tabs content on mobile */
    .program .tabs {
        position: relative;
        padding-bottom: 2rem;
    }

    .tabs__panels {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        gap: 1rem;
        margin: 0;
        padding: 0;
        scroll-padding: 0;
    }

    .tabs__panels::-webkit-scrollbar {
        display: none;
    }

    .tabs__panels .tabs__content {
        display: block;
        flex: 0 0 100%;
        width: 100%;
        scroll-snap-align: start;
        scroll-snap-stop: always;
        opacity: 0.4;
        transition: opacity 0.3s;
    }

    .tabs__panels .tabs__content.active {
        opacity: 1;
    }

    /* Swipe indicator */
    .program .tabs::after {
        content: "← свайп →";
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        font-size: 0.75rem;
        color: var(--text-muted);
        opacity: 0.6;
        pointer-events: none;
    }

    .program .tabs.swiped::after {
        display: none;
    }

    /* Results list mobile */
    .results-list {
        grid-template-columns: 1fr;
    }

    /* Portfolio mobile */
    .portfolio {
        padding: 1rem;
    }

    .portfolio__title {
        font-size: 1.3rem;
    }
}

/* ===========================
   TABLET (1025px - 1199px)
   =========================== */
@media (min-width: 1025px) and (max-width: 1199px) {
    /* Header tablet */
    .header__nav {
        gap: 1.5rem;
    }

    .header__nav a {
        font-size: 0.9rem;
    }

    /* Hero tablet */
    .hero__title {
        font-size: 1.69rem;
    }

    /* Grid tablet */
    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Facts tablet */
    .hero__facts {
        justify-content: center;
    }
}

/* ===========================
   DESKTOP (1200px+)
   =========================== */
@media (min-width: 1200px) {
    /* Hero desktop */
    .hero__title {
        font-size: 2.36rem;
    }

    /* Full grid */
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

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

/* ===========================
   LARGE DESKTOP (1440px+)
   =========================== */
@media (min-width: 1440px) {
    .container,
    header nav {
        max-width: 1400px;
    }
}

/* ===========================
   TOUCH DEVICES
   =========================== */
@media (hover: none) {
    /* Remove hover effects on touch devices */
    .card:hover {
        transform: none;
    }

    .btn:hover {
        transform: none;
    }

    .hover-lift:hover {
        transform: none;
        box-shadow: none;
    }

    .hover-scale:hover {
        transform: none;
    }
}

/* ===========================
   HIGH CONTRAST MODE
   =========================== */
@media (prefers-contrast: high) {
    :root {
        --border-color: #ffffff;
    }

    .btn-secondary {
        border-width: 3px;
    }

    .card {
        border-width: 2px;
    }
}

/* ===========================
   PRINT STYLES
   =========================== */
@media print {
    .header,
    .scroll-to-top,
    .progress-bar,
    .btn {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .section {
        page-break-inside: avoid;
    }
}

/* ===========================
   LANDSCAPE MOBILE
   =========================== */
@media (max-width: 1024px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: var(--spacing-md) var(--container-padding);
    }

    .countdown__wrapper {
        flex-wrap: nowrap;
    }
}