/* --- CSS Variables --- */
:root {
    --primary-color: #007BFF;
    --primary-color-dark: #0056b3;
    --teal: #17A2B8;
    --teal-dark: #117A8B;
    --accent-color: #6f42c1;
    --bg-color: #f8f9fa;
    --text-color: #343a40;
    --heading-color: #212529;
    --border-color: #dee2e6;
    --card-bg: #ffffff;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.07);
    --border-radius: 8px;
    --font-family: 'Poppins', sans-serif;
    --danger-color:#b91c1c;
}

/* --- Global Styles & Resets --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    width: 95%;
    max-width: 1400px;
    margin: 0 auto;
}

h1, h2, h3, h4 {
    color: var(--heading-color);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); margin-bottom: 1.5rem; text-align: center;}
h3 { font-size: 1.25rem; }
p { margin-bottom: 1rem; }
a { color: var(--primary-color); text-decoration: none; }


/* --- Logo Size and Color --- */

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
}

.logo {
    color: var(--primary-color);
    transition: color 0.2s;
}

.logo span {
    color: var(--teal); /* Initial color of "o" */
    transition: color 0.2s;
}

.logo:hover {
    color: var(--primary-color-dark);
}

.logo:hover span {
    color: var(--teal-dark); /* When hovering, "o" becomes teal-dark */
}


/* --- Header & Navigation --- */
.site-header {
    background: #fff;
    padding: 0.6rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding-left: 4%;
    padding-right: 4%;
}


.desktop-nav {
    flex:1;
    max-width: 800px;
    }

.nav-links {
    list-style: none;
    display: flex;
    /*gap: 1.5rem;*/
    justify-content: space-around;
    padding-left: 10px;
    padding-right: 10px;
}

.nav-links a {
    font-weight: 600;
    color: var(--text-color);
    transition: color 0.3s ease;
}

.nav-links a:hover, .nav-links a:focus-visible {
    color: var(--primary-color);
}



/* --- New Styles for Header Auth & User Menu --- */
/* Log in and Sign Up button */
.nav-auth {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-button-secondary, .nav-button-primary {
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.nav-button-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--border-color);
}

.nav-button-secondary:hover {
    background-color: #eef6ff;
    color: var(--primary-color-dark);
}

.nav-button-primary {
    background-color: var(--primary-color);
    color: #fff;
}
.nav-button-primary:hover {
    background-color: var(--primary-color-dark);
    color: #fff;
}

/* User Dropdown Menu (Logged-In State) */
.user-menu {
    position: relative;
}

.user-menu-button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    border-radius: 50%;
}

.user-menu-button img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    display: block;
}

.user-menu-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    min-width: 180px;
    z-index: 1001;
    border: 1px solid var(--border-color);
    overflow: hidden;
    padding: 0.5rem 0;
}

.user-menu-dropdown.show {
    display: block;
}

.user-menu-button:hover  {
    /* highlight the border */
    transform: scale(1.1);       /* slightly enlarge */
    transition: all 0.4s ease;
}


.user-menu-dropdown a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-color);
    font-weight: 500;
}

.user-menu-dropdown a:hover {
    background-color: var(--bg-color);
    color: var(--primary-color);
}

.user-menu-dropdown hr {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 0.5rem 0;
}

.user-initial-avatar {
    width: 40px;
    height: 40px;
    background-color: var(--teal);
    /*background-color: white;*/
    
    /*background-color: #c7d2fe;  or use var(--primary-color) */
    color: #3a3a3a;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.1rem;
    font-family: var(--font-family);
    border: 6px solid var(--teal);
}


/* --- Mobile Nav --- */
.nav-toggle-checkbox { display: none; }
.nav-toggle-label { display: none; cursor: pointer; }
.nav-toggle-label span, .nav-toggle-label span::before, .nav-toggle-label span::after {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--heading-color);
    border-radius: 3px;
    position: relative;
    transition: all 0.3s ease-in-out;
}
.nav-toggle-label span::before, .nav-toggle-label span::after {
    content: '';
    position: absolute;
}
.nav-toggle-label span::before { top: -8px; }
.nav-toggle-label span::after { top: 8px; }

/* --- Sections General Styling --- */
section {
    padding: 4rem 0;
}

/* --- Footer --- */
.site-footer {
    background: var(--heading-color);
    color: #adb5bd;
    padding: 2rem 0;
    text-align: center;
}
.footer-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.footer-links a, .footer-social span {
    color: #fff;
    margin: 0 0.75rem;
    transition: color 0.3s;
}
.footer-links a:hover { color: var(--primary-color); }
.footer-social { font-size: 1.2rem; }
.footer-copyright { font-size: 0.9rem; }

.footer-social {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    margin-top: 1rem;
}

.footer-social a {
    font-size: 1.6rem;
    color: #adb5bd; /* Light gray, readable on dark background */
    transition: color 0.3s ease;
}

.footer-social a:hover {
    color: #ffffff; /* White on hover for visibility */
}



/* --- Responsive Media Queries --- */

/* Tablet */
@media (max-width: 992px) {
    .steps-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }

    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    .hero-text p { margin: 0 auto 2rem auto; }
    
    .main-nav { order: 3; }
    .nav-links {
        font-size: 15px;
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        width: 100%;
        padding: 1rem 0;
        box-shadow: var(--shadow);
    }
    .nav-links li {
        text-align: center;
        margin: 0.5rem 0;
    }
    .nav-toggle-label {
        display: block;
    }
    .nav-toggle-checkbox:checked ~ .nav-links {
        display: flex;
    }
    .nav-toggle-checkbox:checked + .nav-toggle-label span {
        background-color: transparent;
    }
    .nav-toggle-checkbox:checked + .nav-toggle-label span::before {
        transform: rotate(45deg);
        top: 0;
    }
    .nav-toggle-checkbox:checked + .nav-toggle-label span::after {
        transform: rotate(-45deg);
        top: 0;
    }
}


/* ADHOC BUTTON MIGHT BE REMOVED */

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--primary-color);
    color: #fff;
    /*background: linear-gradient(45deg, var(--primary-color), #00A3FF);
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);*/
    border-radius: var(--border-radius);
    font-weight: 600;
    text-transform: uppercase;
    
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cta-button:hover, .cta-button:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
    color: #fff;
}


/* file upload css */
.file-upload-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-color);
    color: #fff;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.3s;
}
.file-upload-button:hover { background-color: #5a2d9b; }
.file-input-hidden { display: none; }


/*FLASH MESSAGES - ALERTS */
/*FLASH MESSAGES - ALERTS */
.flash-messages {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    width: fit-content;
    max-width: 90vw;
    text-align: center;
}

.flash-messages ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* Base flash message styles */
.flash-messages li {
    padding: 12px 16px;
    margin-bottom: 10px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    font-weight: 500;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    /*opacity: 0;
    transform: translateY(-10px);*/
}

/* Apply fade-in animation */
.flash-messages li.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

/* Apply fade-out animation */
.flash-messages li.fade-out {
    animation: fadeOut 0.5s ease forwards;
}

/* Base icon bubble */
.flash-messages li::before {
    content: "!";
    display: inline-block;
    width: 24px;
    height: 24px;
    text-align: center;
    line-height: 24px;
    border-radius: 50%;
    margin-right: 10px;
    font-weight: bold;
    flex-shrink: 0;
}

/* Success (green) */
.flash-messages li.success {
    background-color: #d1fae5;
    color: #065f46;
}
.flash-messages li.success::before {
    content: "✓";
    background-color: #10b981;
    color: white;
}

/* Danger/Error (red) */
.flash-messages li.danger,
.flash-messages li.error {
    background-color: #fee2e2;
    color: #b91c1c;
}
.flash-messages li.danger::before,
.flash-messages li.error::before {
    background-color: #b91c1c;
    color: white;
}

/* Warning (yellow) */
.flash-messages li.warning {
    background-color: #fef3c7;
    color: #92400e;
}
.flash-messages li.warning::before {
    background-color: #f59e0b;
    color: white;
}

/* Info (blue) */
.flash-messages li.info {
    background-color: #dbeafe;
    color: #1e40af;
}
.flash-messages li.info::before {
    content: "ℹ";
    background-color: #3b82f6;
    color: white;
}

/* Fade-in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade-out animation - fixed name to match usage */
@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* === MOBILE HEADER LAYOUT (≤ 768 px) =============================== */
@media (max-width: 768px) {
    /* Completely hide nav menu and burger icon */
    .desktop-nav {
        display: none !important;
    }

    .header-container {
        justify-content: space-between;  /* logo left, buttons right */
        position: relative;
    }

    /* Align auth buttons on the right */
    .nav-auth {
        display: flex;
        gap: 10px;
    }

    .nav-auth a {
        padding: 6px 14px;
        font-size: 0.9rem;
    }

    /* Fix any mobile layout bugs for dropdown user menu (if logged in) */
    .nav-auth .user-dropdown,
    .nav-auth .user-menu-button,
    .nav-auth .user-icon {
        pointer-events: auto;
    }
}