/* ========================================
   RESPONSIVE DESIGN - ALL DEVICES
   ======================================== */

/* Large Desktops (1440px+) */
@media (min-width: 1440px) {
    .container {
        max-width: 1200px;
    }

    #main-clock {
        font-size: 10rem;
    }

    .tool-hero {
        padding: 100px 0;
    }
}

/* Tablets & Small Laptops (768px - 1023px) */
@media (max-width: 1023px) {
    .layout-main {
        margin-left: 0;
    }

    .sidebar {
        transform: translateX(-100%);
        box-shadow: 20px 0 50px rgba(0, 0, 0, 0.5);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .sidebar-close {
        display: block;
    }

    .hamburger-btn {
        display: flex;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        z-index: 999;
        backdrop-filter: blur(4px);
    }

    .sidebar-overlay.active {
        display: block;
    }

    #main-clock {
        font-size: 6rem;
    }

    .home-extra-sections {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .modal-content {
        max-width: 90%;
        margin: 0 20px;
    }
}

/* Mobile Landscape & Small Tablets (600px - 767px) */
@media (max-width: 767px) {
    :root {
        --header-height: 56px;
    }

    .container {
        padding: 0 16px;
    }

    .main-wrapper {
        padding: 24px 0;
    }

    .tool-hero {
        padding: 40px 0;
    }

    #main-clock {
        font-size: 4rem;
        letter-spacing: -1px;
    }

    #main-date {
        font-size: 1rem;
        margin-bottom: 32px;
    }

    .btn-trigger {
        padding: 14px 32px;
        font-size: 1.1rem;
        width: 100%;
        max-width: 300px;
    }

    .clock-utilities {
        gap: 16px;
        margin-top: 32px;
    }

    .util-btn svg {
        width: 24px;
        height: 24px;
    }

    .home-extra-sections {
        margin: 40px 0;
        gap: 32px;
    }

    .section-head {
        font-size: 1.2rem;
    }

    .preset-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        gap: 8px;
    }

    .preset-btn {
        padding: 12px 6px;
        font-size: 0.9rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card {
        padding: 20px;
    }

    .content-section h2 {
        font-size: 1.5rem;
    }

    .content-section p {
        font-size: 1rem;
    }

    .modal-content {
        max-width: 95%;
        margin: 0 10px;
    }

    .modal-header h2 {
        font-size: 1.1rem;
    }

    .input-row {
        gap: 12px;
    }

    .picker-control {
        height: 40px;
    }

    .picker-btn {
        width: 36px;
        font-size: 1rem;
    }

    .faq-question {
        font-size: 1rem;
        padding: 16px 20px;
    }

    .related-tools {
        gap: 12px;
    }

    .tool-link {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
}

/* Mobile Portrait (480px - 599px) */
@media (max-width: 599px) {
    #main-clock {
        font-size: 3rem;
    }

    .btn-trigger {
        padding: 12px 24px;
        font-size: 1rem;
    }

    .clock-utilities {
        gap: 12px;
        flex-wrap: wrap;
    }

    .util-btn svg {
        width: 20px;
        height: 20px;
    }

    .home-extra-sections {
        margin: 32px 0;
    }

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

    .modal-header {
        padding: 16px 20px;
    }

    .modal-body {
        padding: 20px;
    }

    .input-row {
        flex-direction: column;
        gap: 16px;
    }

    .input-group {
        width: 100%;
    }

    .content-section h2 {
        font-size: 1.3rem;
    }

    .sidebar {
        width: 280px;
    }

    .sidebar-logo {
        font-size: 1.2rem;
    }

    .nav-item {
        padding: 10px 14px;
        font-size: 0.9rem;
    }
}

/* Small Mobile (320px - 479px) */
@media (max-width: 479px) {
    #main-clock {
        font-size: 2.5rem;
        letter-spacing: 0;
    }

    #main-date {
        font-size: 0.9rem;
        margin-bottom: 24px;
    }

    .btn-trigger {
        padding: 12px 20px;
        font-size: 0.95rem;
        width: 100%;
    }

    .clock-utilities {
        gap: 10px;
    }

    .preset-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
    }

    .preset-btn {
        padding: 10px 4px;
        font-size: 0.85rem;
    }

    .section-head {
        font-size: 1.1rem;
    }

    .feature-card {
        padding: 16px;
    }

    .feature-card h3 {
        font-size: 1.1rem;
    }

    .content-section h2 {
        font-size: 1.2rem;
        margin-bottom: 16px;
    }

    .faq-question {
        font-size: 0.95rem;
        padding: 14px 16px;
    }

    .faq-answer {
        padding: 0 16px;
    }

    .modal-content {
        border-radius: 8px;
    }

    .picker-control {
        height: 36px;
    }

    .picker-btn {
        width: 32px;
    }

    .picker-input {
        font-size: 1rem;
    }

    .qualification-input {
        height: 40px;
        font-size: 0.95rem;
    }

    .footer-btn {
        height: 36px;
        padding: 0 16px;
        font-size: 0.9rem;
    }

    .sidebar {
        width: 260px;
    }
}

/* Fullscreen Responsive Adjustments */
@media (max-width: 767px) {
    body.is-fullscreen #main-clock {
        font-size: clamp(3rem, 18vw, 10rem);
        letter-spacing: -0.04em;
    }

    body.is-fullscreen #main-date {
        font-size: clamp(1rem, 4vw, 1.5rem);
        margin-top: clamp(12px, 2vh, 24px);
    }

    body.is-fullscreen .active-alarm-info {
        bottom: clamp(30px, 6vh, 80px);
    }
}

@media (max-width: 479px) {
    body.is-fullscreen #main-clock {
        font-size: clamp(2.5rem, 16vw, 8rem);
        letter-spacing: -0.05em;
    }

    body.is-fullscreen #main-date {
        font-size: clamp(0.9rem, 3.5vw, 1.3rem);
        margin-top: clamp(10px, 1.5vh, 20px);
    }

    body.is-fullscreen .tool-hero {
        padding: 3vw;
    }
}

/* Landscape Orientation Fixes */
@media (max-height: 500px) and (orientation: landscape) {
    .tool-hero {
        padding: 20px 0;
    }

    #main-clock {
        font-size: 3rem;
    }

    #main-date {
        margin-bottom: 16px;
    }

    .btn-trigger {
        padding: 10px 24px;
    }

    .clock-utilities {
        margin-top: 16px;
    }

    .home-extra-sections {
        margin: 24px 0;
    }

    body.is-fullscreen #main-clock {
        font-size: min(10vw, 35vh);
    }
}

/* Print Styles */
@media print {

    .sidebar,
    .hamburger-btn,
    .clock-utilities,
    .btn-trigger,
    .modal,
    footer {
        display: none !important;
    }

    .layout-main {
        margin-left: 0;
    }

    body {
        background: white;
        color: black;
    }

    #main-clock {
        color: black;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #555555;
        --text-secondary: #cccccc;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}