/* Public_html/style.css */

/* Define CSS Variables for Dark Mode (Default) */


:root {
    --bg-primary: #121212;
    --bg-secondary: #1A1A1A;
    --text-primary: #E0E0E0;
    --text-secondary: #B0B0B0;
    --accent-color: #3BE8D3;
    --accent-dark: #2CBDA4;
    --border-color: rgba(59, 232, 211, 0.1);
    --shadow-color: rgba(0, 255, 255, 0.05);
    --section-bg-light: #1A1A1A;
    --card-bg: #1F1F1F;
    --input-bg: #2C2C2C;
    --input-border: #444444;
    --input-text: #E0E0E0;
    --btn-primary-bg: #3BE8D3;
    --btn-primary-text: #121212;
    --btn-outline-text: #3BE8D3;
    --nav-link-color: #B0B0B0;
    --nav-link-hover: #3BE8D3;
    --header-bg: rgba(18, 18, 18, 0.9);
    --footer-bg: #1A1A1A;
    --tab-inactive-bg: transparent;
    --tab-inactive-text: #B0B0B0;
    --tab-active-bg: #3BE8D3;
    --tab-active-text: #121212;
    --alert-success-bg: #d1e7dd;
    --alert-success-text: #0f5132;
    --alert-danger-bg: #f8d7da;
    --alert-danger-text: #842029;
    --accordion-button-bg: #1A1A1A;
    --accordion-button-text: #E0E0E0;
    --accordion-body-bg: #1F1F1F;
    --accordion-body-text: #B0B0B0;
    --logo-invert: 1;
}

/* Light Mode Variables */
body.light-mode {
    --bg-primary: #F0F2F5;
    --bg-secondary: #FFFFFF;
    --text-primary: #333333;
    --text-secondary: #555555;
    --accent-color: #007bff;
    --accent-dark: #0056b3;
    --border-color: rgba(0, 123, 255, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.08);
    --section-bg-light: #F8F9FA;
    --card-bg: #FFFFFF;
    --input-bg: #FFFFFF;
    --input-border: #CED4DA;
    --input-text: #333333;
    --btn-primary-bg: #007bff;
    --btn-primary-text: #FFFFFF;
    --btn-outline-text: #007bff;
    --nav-link-color: #555555;
    --nav-link-hover: #007bff;
    --header-bg: rgba(255, 255, 255, 0.9);
    --footer-bg: #E9ECEF;
    --tab-inactive-bg: transparent;
    --tab-inactive-text: #555555;
    --tab-active-bg: #007bff;
    --tab-active-text: #FFFFFF;
    --alert-success-bg: #d1e7dd;
    --alert-success-text: #0f5132;
    --alert-danger-bg: #f8d7da;
    --alert-danger-text: #842029;
    --accordion-button-bg: #FFFFFF;
    --accordion-button-text: #333333;
    --accordion-body-bg: #F8F9FA;
    --accordion-body-text: #555555;
    --logo-invert: 0;
}

/* General Styles */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Grid Pattern */
body.dark-mode,
body.light-mode {
    background-image:
        linear-gradient(to right, var(--border-color) 1px, transparent 1px),
        linear-gradient(to bottom, var(--border-color) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Links */
a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: var(--accent-dark);
}

/* Header */
.header-bg {
    background-color: var(--header-bg);
    backdrop-filter: blur(5px);
    z-index: 1000;
}

.navbar-brand img {
    filter: invert(var(--logo-invert));
    transition: filter 0.3s ease;
}

/* Navigation */
.nav-link {
    color: var(--nav-link-color) !important;
    font-weight: 500;
    transition: color 0.3s ease;
}
.nav-link:hover {
    color: var(--nav-link-hover) !important;
}

/* Toggle Button */
.theme-toggle-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.theme-toggle-btn:hover {
    background-color: var(--section-bg-light);
    color: var(--accent-color);
}

/* Hamburger Menu */
.hamburger-menu-btn {
    background: transparent;
    border: none;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}
.hamburger-icon {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease-in-out;
    border-radius: 2px;
}
.hamburger-menu-btn.active .hamburger-icon:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.hamburger-menu-btn.active .hamburger-icon:nth-child(2) {
    opacity: 0;
}
.hamburger-menu-btn.active .hamburger-icon:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Offcanvas */
.mobile-nav-offcanvas {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    width: 280px;
}
.mobile-nav-offcanvas .btn-close {
    filter: invert(var(--logo-invert));
}
.mobile-nav .nav-link {
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    color: var(--text-primary) !important;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}
.mobile-nav .nav-link:hover {
    background-color: var(--section-bg-light);
    color: var(--accent-color) !important;
}

/* Main */
main {
    flex: 1;
    margin-top: 100px;
}
.section-spacing {
    padding-top: 80px;
    padding-bottom: 80px;
}
.section-title {
    font-weight: 600;
    font-size: 2.2rem;
    color: var(--text-primary);
    margin-bottom: 3rem;
}

/* Hero */
.hero-section {
    min-height: calc(100vh - 100px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 120px;
    padding-bottom: 60px;
}
.hero-section h1 {
    font-size: 2.8rem;
    line-height: 1.2;
}
.hero-section h2 {
    font-size: 1.5rem;
    opacity: 0.8;
}
.hero-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 0 20px var(--shadow-color);
    padding: 40px !important;
    max-width: 700px;
    width: 100%;
}

/* Tabs */
.nav-tabs {
    border-bottom: none;
    margin-bottom: 1.5rem;
}
.nav-tabs .nav-link {
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    margin: 0 5px;
    font-weight: 500;
    transition: all 0.3s ease;
    background-color: var(--tab-inactive-bg);
    color: var(--tab-inactive-text) !important;
}
.nav-tabs .nav-link:hover {
    background-color: var(--section-bg-light);
}
.nav-tabs .nav-link.active {
    background-color: var(--tab-active-bg) !important;
    color: var(--tab-active-text) !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Forms */
.form-control-lg {
    border-radius: 8px;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--input-text);
    padding: 12px 15px;
}
.form-control-lg::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}
.form-control-lg:focus {
    background-color: var(--input-bg);
    color: var(--input-text);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.25rem rgba(59, 232, 211, 0.25);
}

/* Buttons */
.btn-primary {
    background-color: var(--btn-primary-bg) !important;
    border-color: var(--btn-primary-bg) !important;
    color: var(--btn-primary-text) !important;
    font-weight: 600;
    border-radius: 8px;
    padding: 12px 25px;
    transition: all 0.3s ease;
}
.btn-primary:hover {
    background-color: var(--accent-dark) !important;
    border-color: var(--accent-dark) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}
.btn-outline-secondary {
    border-color: var(--btn-outline-text) !important;
    color: var(--btn-outline-text) !important;
    background-color: transparent !important;
    transition: all 0.3s ease;
}
.btn-outline-secondary:hover {
    background-color: var(--btn-outline-text) !important;
    color: var(--btn-primary-text) !important;
}

/* Alerts */
.alert-success {
    background-color: var(--alert-success-bg);
    color: var(--alert-success-text);
    border-color: var(--alert-success-bg);
    border-radius: 8px;
}
.alert-danger {
    background-color: var(--alert-danger-bg);
    color: var(--alert-danger-text);
    border-color: var(--alert-danger-bg);
    border-radius: 8px;
}

/* Footer */
.footer-bg {
    background-color: var(--footer-bg);
    color: var(--text-secondary);
}
.footer-nav .nav-link {
    color: var(--text-secondary) !important;
    font-size: 0.9rem;
}
.footer-nav .nav-link:hover {
    color: var(--accent-color) !important;
}

/* Responsive */
@media (max-width: 991.98px) {
    .hero-section h1 { font-size: 2.2rem; }
    .hero-section h2 { font-size: 1.2rem; }
    .hero-card { padding: 25px !important; }
}
@media (max-width: 767.98px) {
    .hero-section h1 { font-size: 1.8rem; }
    .hero-section h2 { font-size: 1rem; }
    .btn-primary.w-md-auto { width: 100% !important; }
}
@media (max-width: 575.98px) {
    .hero-section h1 { font-size: 1.6rem; }
    .hero-section h2 { font-size: 0.9rem; }
    .hero-card { padding: 20px !important; }
    .nav-tabs .nav-link { padding: 8px 12px; font-size: 0.9rem; }
}