/* ===========================
   SHARED STYLES — alymagdi.com
   =========================== */

/* --- Anti-Clickjacking Fallback --- */
/* Page hidden by default; inline <script> in <head> shows it when not framed.
   If page is loaded in an iframe (clickjacking), CSS keeps it invisible even
   if the JS frame-buster in shared.js is blocked by sandbox="allow-scripts". */
html {
    display: none !important;
}

/* --- Smooth Scroll --- */
html {
    scroll-behavior: smooth;
}

/* --- CSS Variables & Theme --- */
/* Dark theme is the default */
:root {
    --bg-color: #0f0f0f;
    --text-primary: #ededed;
    --text-secondary: #ababab;
    --border-color: #1c1c1c;
    --accent-color: #ff5500;
    --card-bg: #151515;
    --card-bg-alpha: rgba(21, 21, 21, 0.85);
}

/* Light theme only when explicitly selected */
[data-theme="light"] {
    --bg-color: #fafafa;
    --text-primary: #0d0d0d;
    --text-secondary: #7a7a7a;
    --border-color: #f0f0f0;
    --card-bg: #ffffff;
    --card-bg-alpha: rgba(255, 255, 255, 0.85);
}

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

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

/* --- Container --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

@media (max-width: 1199px) {
    .container {
        max-width: 810px;
    }
}

@media (max-width: 809px) {
    .container {
        max-width: 390px;
        padding: 0 24px;
    }
}

/* --- Navigation --- */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--card-bg-alpha);
    border-bottom: 0.5px solid var(--border-color);
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

@media (max-width: 1199px) {
    .nav-container {
        height: 48px;
    }
}

@media (max-width: 809px) {
    .nav-container {
        height: 48px;
    }
}

.logo {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.nav-items {
    display: flex;
    gap: 16px;
    align-items: center;
}

/* --- Nav Links with Glow --- */
.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
    background-color: transparent !important;
}

.nav-link:hover {
    color: var(--accent-color) !important;
    text-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color);
    background-color: transparent !important;
}

.nav-link.active {
    color: var(--accent-color) !important;
    text-shadow: 0 0 10px var(--accent-color), 0 0 15px var(--accent-color);
    background-color: transparent !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
    box-shadow: 0 0 8px var(--accent-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* --- Email Button --- */
.email-button {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.email-button:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 85, 0, 0.2);
}

/* --- Theme Toggle --- */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 85, 0, 0.2);
}

/* Dark is default: show sun (to switch to light) by default */
.icon-sun { display: block; }
.icon-moon { display: none; }

[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* --- Mobile Menu Toggle --- */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 101;
    padding: 6px;
    border: none;
    background: none;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background-color: var(--text-secondary);
    border-radius: 2px;
    transition: all 0.3s ease;
    display: block;
}

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

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

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

@media (max-width: 809px) {
    /* Hide hamburger menu and all nav items on mobile — replaced by bottom tab bar */
    .menu-toggle {
        display: none !important;
    }

    .nav-items {
        display: none !important;
    }

    /* Add bottom padding so content doesn't hide behind bottom bar */
    body {
        padding-bottom: 84px;
    }

    .site-footer {
        margin-bottom: 0;
        padding-bottom: 40px;
    }

    /* Move scroll-to-top above bottom bar */
    .scroll-top {
        bottom: 92px;
    }
}

/* --- Mobile Bottom Tab Bar --- */
.bottom-tab-bar {
    display: none;
    position: fixed;
    bottom: 12px;
    left: 12px;
    right: 12px;
    height: 60px;
    background-color: var(--card-bg-alpha);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 0.5px solid var(--border-color);
    border-radius: 20px;
    z-index: 100;
    justify-content: space-around;
    align-items: center;
    padding: 0 4px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

@media (max-width: 809px) {
    .bottom-tab-bar {
        display: flex;
    }
}

.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 6px 12px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: all 0.25s ease;
    border-radius: 14px;
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    -webkit-tap-highlight-color: transparent;
}

.tab-item svg {
    width: 20px;
    height: 20px;
    transition: transform 0.25s ease;
}

.tab-item span {
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.tab-item.active {
    color: var(--accent-color);
    background: rgba(255, 85, 0, 0.1);
}

.tab-item.active svg {
    transform: scale(1.1);
    filter: drop-shadow(0 0 6px rgba(255, 85, 0, 0.4));
}

.tab-item:active {
    transform: scale(0.92);
}

/* Bottom bar theme icons */
.tab-icon-sun { display: block; }
.tab-icon-moon { display: none; }
[data-theme="light"] .tab-icon-sun { display: none; }
[data-theme="light"] .tab-icon-moon { display: block; }

/* --- Global Links --- */
a {
    color: var(--accent-color);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
}

/* --- Section Scroll Reveal --- */
.section {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- CSS Scroll-Driven Animations (Progressive Enhancement) --- */
@supports (animation-timeline: view()) {
    .section {
        animation: revealOnScroll linear both;
        animation-timeline: view();
        animation-range: entry 0% entry 30%;
    }

    @keyframes revealOnScroll {
        from {
            opacity: 0;
            transform: translateY(24px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

/* --- Page Load Animation --- */
@keyframes pageLoad {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-load {
    animation: pageLoad 1s ease forwards;
}

/* --- Back Button --- */
.back-button {
    display: inline-block;
    margin-top: 30px;
    padding: 10px 20px;
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.back-button:hover {
    color: var(--accent-color) !important;
    text-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color);
    border-color: var(--accent-color);
    background-color: rgba(255, 100, 0, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 100, 0, 0.2);
}

/* --- Hero Background Effects --- */
.hero {
    position: relative;
    overflow: hidden;
}

.hero > .container {
    position: relative;
    z-index: 1;
}



/* --- Enhanced Card Hover Effects --- */
.blog-card:hover,
.service-card:hover {
    transform: translateY(-3px) scale(1.01);
}

/* --- Scroll-to-Top Button --- */
.scroll-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 50;
}

.scroll-top.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.scroll-top:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(255, 85, 0, 0.3);
    transform: translateY(-2px);
}

/* --- Footer --- */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 48px 0 32px;
    margin-top: 80px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.footer-nav {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.footer-link:hover {
    color: var(--accent-color);
    text-shadow: 0 0 8px rgba(255, 85, 0, 0.4);
}

.footer-social {
    display: flex;
    gap: 12px;
    align-items: center;
}

.footer-social-link {
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.footer-social-link:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 12px rgba(255, 85, 0, 0.25);
    transform: translateY(-2px);
}

.footer-social-link svg {
    width: 16px;
    height: 16px;
}

.footer-copy {
    color: var(--text-secondary);
    font-size: 13px;
}

/* --- Focus Visible (Accessibility) --- */
:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(255, 85, 0, 0.15);
}

.nav-link:focus-visible {
    color: var(--accent-color);
    text-shadow: 0 0 10px var(--accent-color);
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
}

.email-button:focus-visible,
.theme-toggle:focus-visible,
.scroll-top:focus-visible,
.menu-toggle:focus-visible {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.3);
    outline: none;
}

.blog-card:focus-visible,
.service-card:focus-visible,
.cert-item:focus-visible,
.footer-social-link:focus-visible {
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(255, 85, 0, 0.2);
    outline: none;
}
