/* ============================================
   REUSABLE BUTTON & LINK STYLES
   Avenqube - Professional UI/UX Design
   ============================================ */

/* COLOR VARIABLES */
:root {
    --primary-blue: #0066cc;
    --dark-blue: #004499;
    --light-blue: #f0f7ff;
    --secondary-green: #00aa66;
    --dark-green: #008844;
    --light-green: #f0fff5;
    --accent-orange: #ff9900;
    --dark-orange: #dd7700;
    --light-orange: #fff5f0;
    --danger-red: #cc0066;
    --dark-red: #aa0055;
    --light-red: #fff0f5;
    --text-dark: #1a2332;
    --text-light: #666666;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 8px 20px rgba(0, 0, 0, 0.12);
    --shadow-dark: 0 12px 30px rgba(0, 0, 0, 0.15);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.4s ease;
}

/* ============================================
   PRIMARY BUTTONS
   ============================================ */

.btn,
.btn-primary,
button[type="submit"],
input[type="submit"] {
    display: inline-block;
    padding: 14px 28px;
    background-color: var(--primary-blue);
    color: var(--bg-white);
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-light);
    text-align: center;
    white-space: nowrap;
    user-select: none;
    -webkit-user-select: none;
}

.btn:hover,
.btn-primary:hover,
button[type="submit"]:hover,
input[type="submit"]:hover {
    background-color: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn:active,
.btn-primary:active,
button[type="submit"]:active,
input[type="submit"]:active {
    transform: translateY(0);
    box-shadow: var(--shadow-light);
}

.btn:focus,
.btn-primary:focus,
button[type="submit"]:focus,
input[type="submit"]:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* ============================================
   SECONDARY BUTTONS
   ============================================ */

.btn-secondary {
    display: inline-block;
    padding: 12px 26px;
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    white-space: nowrap;
    user-select: none;
}

.btn-secondary:hover {
    background-color: var(--primary-blue);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary:active {
    transform: translateY(0);
}

.btn-secondary:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* ============================================
   SUCCESS BUTTONS (Green)
   ============================================ */

.btn-success {
    display: inline-block;
    padding: 14px 28px;
    background-color: var(--secondary-green);
    color: var(--bg-white);
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-light);
    text-align: center;
    white-space: nowrap;
    user-select: none;
}

.btn-success:hover {
    background-color: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-success:focus {
    outline: 2px solid var(--secondary-green);
    outline-offset: 2px;
}

/* ============================================
   DANGER BUTTONS (Red)
   ============================================ */

.btn-danger {
    display: inline-block;
    padding: 14px 28px;
    background-color: var(--danger-red);
    color: var(--bg-white);
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-light);
    text-align: center;
    white-space: nowrap;
    user-select: none;
}

.btn-danger:hover {
    background-color: var(--dark-red);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-danger:focus {
    outline: 2px solid var(--danger-red);
    outline-offset: 2px;
}

/* ============================================
   SMALL BUTTONS
   ============================================ */

.btn-small {
    padding: 10px 18px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* ============================================
   LARGE BUTTONS
   ============================================ */

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* ============================================
   FULL WIDTH BUTTONS
   ============================================ */

.btn-block {
    display: block;
    width: 100%;
}

/* ============================================
   TEXT LINKS
   ============================================ */

a,
.link {
    color: var(--primary-blue);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-normal);
    font-weight: 500;
}

a:hover,
.link:hover {
    color: var(--dark-blue);
    border-bottom-color: var(--primary-blue);
}

a:focus,
.link:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ============================================
   FOOTER LINKS - BUTTON STYLE
   ============================================ */

.footer-link,
.footer-section a {
    display: inline-block;
    padding: 10px 14px;
    background-color: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-normal);
    border-left: 3px solid var(--primary-blue);
    margin-bottom: 8px;
    margin-right: 0;
}

.footer-link:hover,
.footer-section a:hover {
    background-color: var(--primary-blue);
    color: var(--bg-white);
    padding-left: 18px;
    transform: translateX(2px);
}

.footer-link:focus,
.footer-section a:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* ============================================
   FOOTER BOTTOM LINKS
   ============================================ */

.footer-bottom a,
.footer-links a {
    display: inline-block;
    padding: 8px 12px;
    background-color: rgba(0, 102, 204, 0.1);
    color: var(--primary-blue);
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-normal);
    margin-right: 8px;
    margin-bottom: 8px;
}

.footer-bottom a:hover,
.footer-links a:hover {
    background-color: var(--primary-blue);
    color: var(--bg-white);
    transform: translateY(-2px);
}

.footer-bottom a:focus,
.footer-links a:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* ============================================
   NAVIGATION LINKS
   ============================================ */

nav a,
.navbar a {
    padding: 8px 12px;
    color: var(--text-dark);
    text-decoration: none;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-normal);
    font-weight: 500;
    display: inline-block;
}

nav a:hover,
.navbar a:hover,
nav a.active,
.navbar a.active {
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue);
}

nav a:focus,
.navbar a:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* ============================================
   DROPDOWN MENU
   ============================================ */

.dropdown-menu {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: var(--shadow-medium);
    padding: 8px 0;
    min-width: 200px;
    animation: slideDown var(--transition-normal) ease;
}

.dropdown-menu a {
    display: block;
    padding: 12px 20px;
    color: var(--text-dark);
    text-decoration: none;
    transition: all var(--transition-normal);
    border: none;
}

.dropdown-menu a:hover {
    background-color: var(--light-blue);
    color: var(--primary-blue);
    padding-left: 24px;
    border: none;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="search"],
input[type="url"],
textarea,
select {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-normal);
    background-color: var(--bg-white);
    color: var(--text-dark);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="url"]:focus,
textarea:focus,
select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
    outline: none;
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================
   FORM LABELS
   ============================================ */

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    margin-bottom: 8px;
}

/* ============================================
   FORM SUBMIT BUTTON
   ============================================ */

form button[type="submit"],
form input[type="submit"] {
    width: 100%;
    padding: 14px 28px;
    background-color: var(--primary-blue);
    color: var(--bg-white);
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-light);
}

form button[type="submit"]:hover,
form input[type="submit"]:hover {
    background-color: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

form button[type="submit"]:active,
form input[type="submit"]:active {
    transform: translateY(0);
}

/* ============================================
   LINK BUTTON STYLES
   ============================================ */

a.btn-link {
    color: var(--primary-blue);
    text-decoration: underline;
    padding: 0;
    background: none;
    border: none;
    box-shadow: none;
    font-weight: 500;
}

a.btn-link:hover {
    color: var(--dark-blue);
    text-decoration: underline;
}

/* ============================================
   ICON BUTTONS
   ============================================ */

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    background-color: var(--light-blue);
    color: var(--primary-blue);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-icon:hover {
    background-color: var(--primary-blue);
    color: var(--bg-white);
    transform: scale(1.1);
}

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

/* ============================================
   DISABLED STATES
   ============================================ */

button:disabled,
input:disabled,
.btn:disabled,
.btn-primary:disabled,
.btn-secondary:disabled,
.btn-success:disabled,
.btn-danger:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* ============================================
   LOADING STATE
   ============================================ */

.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .btn,
    .btn-primary,
    .btn-secondary,
    .btn-success,
    .btn-danger {
        padding: 12px 20px;
        font-size: 0.95rem;
    }

    .btn-large {
        padding: 14px 24px;
    }

    .footer-link,
    .footer-section a {
        display: block;
        margin-bottom: 10px;
    }

    .footer-bottom a,
    .footer-links a {
        display: inline-block;
        margin-right: 6px;
        margin-bottom: 6px;
    }

    nav a,
    .navbar a {
        padding: 6px 10px;
        font-size: 0.9rem;
    }

    input[type="text"],
    input[type="email"],
    input[type="tel"],
    textarea,
    select {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

@media (max-width: 480px) {
    .btn,
    .btn-primary,
    .btn-secondary,
    .btn-success,
    .btn-danger {
        padding: 12px 16px;
        font-size: 0.9rem;
    }

    .btn-block {
        width: 100%;
    }

    .footer-link,
    .footer-section a {
        display: block;
        padding: 10px 12px;
    }

    .dropdown-menu {
        min-width: 150px;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.p-4 { padding: 32px; }

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .btn,
    .btn-primary,
    .btn-secondary,
    .btn-success,
    .btn-danger {
        border: 1px solid var(--text-dark);
        background-color: transparent;
        color: var(--text-dark);
    }

    a {
        color: var(--text-dark);
        text-decoration: underline;
    }
}