/* ======================================================================
   style.css – Global Styles, Theme Variables, Navbar, Modals, Buttons
   ====================================================================== */

/* ========== THEME VARIABLES (Light default) ========== */
:root {
    --bg-color: #f8fafc;
    --text-color: #1e293b;
    --header-bg: #ffffff;
    --border-color: #e2e8f0;
    --card-bg: #ffffff;
    --input-bg: #f1f5f9;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --accent: #f59e0b;
    --accent-hover: #d97706;
    --success: #22c55e;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --muted: #64748b;
    --panel: #f1f5f9;
    --panel-2: #e2e8f0;
    --panel-3: #cbd5e1;
    --shadow-sm: 0 1px 3px 0 rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px 0 rgba(0,0,0,0.10);
    --shadow-lg: 0 10px 30px -8px rgba(0,0,0,0.15);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --spacing-xs: 0.2rem;
    --spacing-sm: 0.4rem;
    --spacing-md: 0.8rem;
    --spacing-lg: 1.2rem;
    --spacing-xl: 1.6rem;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ========== DARK THEME OVERRIDE ========== */
body.dark-mode {
    --bg-color: #0f172a;
    --text-color: #f1f5f9;
    --header-bg: #1e293b;
    --border-color: #334155;
    --card-bg: #1e293b;
    --input-bg: #0f172a;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #1e293b;
    --accent: #f59e0b;
    --accent-hover: #d97706;
    --success: #22c55e;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --muted: #94a3b8;
    --panel: #1e293b;
    --panel-2: #334155;
    --panel-3: #0f172a;
    --shadow-sm: 0 1px 3px 0 rgba(0,0,0,0.25);
    --shadow-md: 0 4px 12px 0 rgba(0,0,0,0.30);
    --shadow-lg: 0 10px 30px -8px rgba(0,0,0,0.40);
}

/* ========== RESET ========== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ========== BASE ELEMENTS ========== */
body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.25s ease, color 0.25s ease;
}

/* ========== CONTAINER ========== */
.container {
    max-width: 100%;
    padding: 0 1.5rem;
    margin: 0 auto;
}

/* ========== CARDS ========== */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

/* ========== FORM ELEMENTS ========== */
input,
select,
textarea {
    background-color: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem 0.75rem;
    font-size: 1rem;
    width: 100%;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.20);
}
label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 0.2rem;
}

/* ========== BUTTONS ========== */
.btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-color);
    padding: 0.3rem 0.9rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    white-space: nowrap;
}
.btn:hover {
    background: var(--panel-2);
    border-color: var(--border-color);
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
}
.btn-accent {
    background: var(--accent);
    color: #000;
    border-color: var(--accent);
    font-weight: 700;
}
.btn-accent:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}
.btn-danger {
    color: var(--danger);
}
.btn-danger:hover {
    background: rgba(239, 68, 68, 0.12);
    border-color: var(--danger);
}
.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-color);
    padding: 0.2rem 0.4rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    transition: background 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
}
.btn-icon:hover {
    background: var(--panel-2);
    opacity: 1;
}
.btn-icon.delete-btn {
    color: var(--danger);
}
.btn-icon.delete-btn:hover {
    background: rgba(239, 68, 68, 0.12);
}

/* ========== BADGES ========== */
.badge {
    display: inline-block;
    background: var(--panel-2);
    border: 1px solid var(--border-color);
    padding: 0.15rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-color);
    white-space: nowrap;
}

/* ========== MODALS ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(6px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}
.modal-overlay.active {
    display: flex;
}
.modal-card {
    background: var(--card-bg);
    color: var(--text-color);
    border-radius: var(--radius-xl);
    padding: 2rem;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}
.modal-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0;
}
.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-color);
    opacity: 0.5;
    cursor: pointer;
    transition: opacity 0.2s;
}
.close-btn:hover {
    opacity: 1;
}
.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* ========== NAVBAR ========== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0.8rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}
.nav-left,
.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
.nav-links {
    display: flex;
    list-style: none;
    gap: 0.8rem;
    align-items: center;
    margin: 0;
    padding: 0;
}
.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}
.nav-links a:hover {
    background: var(--panel-2);
}
.brand-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-color);
}
.brand-logo-svg {
    width: 28px;
    height: 28px;
}
.brand-title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* ========== DROPDOWNS ========== */
/* User dropdown (avatar/gear) */
.user-menu-container {
    position: relative;
    display: inline-block;
}
.user-menu-container:hover .user-dropdown {
    display: flex;
}
.user-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 160px;
    z-index: 1000;
    flex-direction: column;
    padding: 0.3rem 0;
}
.user-dropdown a,
.user-dropdown button {
    padding: 0.5rem 1rem;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-color);
    text-decoration: none;
    width: 100%;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s;
}
.user-dropdown a:hover,
.user-dropdown button:hover {
    background: var(--panel-2);
}

/* Language dropdown */
.lang-menu-container {
    position: relative;
    display: inline-block;
}
.lang-menu-container:hover .lang-dropdown {
    display: flex;
}
.lang-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 160px;
    z-index: 1000;
    flex-direction: column;
    padding: 0.3rem 0;
}
.lang-option-select {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 0.5rem 1rem;
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.9rem;
}
.lang-option-select:hover {
    background: var(--panel-2);
}

/* Navbar dropdown (Tools) */
.nav-links li.dropdown {
    position: relative;
}
.nav-links li.dropdown .dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 150px;
    z-index: 1000;
    list-style: none;
    padding: 0.3rem 0;
    margin: 0;
}
.nav-links li.dropdown:hover .dropdown-content {
    display: block;
}
.nav-links li.dropdown .dropdown-content li a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-color);
    text-decoration: none;
}
.nav-links li.dropdown .dropdown-content li a:hover {
    background: var(--panel-2);
}
.dropbtn-text {
    color: var(--text-color);
    font-weight: 500;
    padding: 0.4rem 0.4rem;
    cursor: default;
    display: inline-block;
}
.dropdown:hover .dropbtn-text {
    color: var(--accent);
}

/* User icon button – clean */
.user-icon-btn {
    background: transparent;
    border: none;
    padding: 0.3rem 0.5rem;
    cursor: pointer;
    color: var(--text-color);
    font-size: 1rem;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}
.user-icon-btn:hover {
    background: var(--panel-2);
}

/* Flag icon */
.flag-icon {
    width: 20px;
    height: 14px;
    border-radius: 2px;
    vertical-align: middle;
}
.dropdown-arrow {
    font-size: 0.7rem;
    opacity: 0.7;
    margin-left: 0.2rem;
}

/* ========== PROFILE PAGE ========== */
.profile-wrapper {
    max-width: 1550px;
    margin: 2rem auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 1024px) {
    .profile-wrapper {
        grid-template-columns: 1fr 1fr 1fr;
    }
}
.profile-msg {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
}
.username-hint {
    display: block;
    margin-top: 0.2rem;
    font-size: 0.8rem;
}

/* ========== UTILITY ========== */
.hidden {
    display: none !important;
}