/* ==================== FOOTER HOTEL OSLO - MODERN STYLES ==================== */

:root {
    --oslo-primary: #1a4d7d;
    --oslo-secondary: #2874b0;
    --oslo-accent: #d4af37;
    --oslo-gold: #f4d03f;
    --oslo-dark: #0a1929;
    --oslo-light: #ffffff;
    --oslo-gray: #e8eef3;
    --oslo-text: #2c3e50;
    --oslo-gradient-primary: linear-gradient(135deg, #1a4d7d 0%, #2874b0 100%);
    --oslo-gradient-gold: linear-gradient(135deg, #d4af37 0%, #f4d03f 100%);
    --oslo-shadow-sm: 0 2px 8px rgba(26, 77, 125, 0.1);
    --oslo-shadow-md: 0 4px 16px rgba(26, 77, 125, 0.15);
    --oslo-shadow-lg: 0 8px 32px rgba(26, 77, 125, 0.2);
    --oslo-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== FOOTER CONTAINER ==================== */
.oslo-footer {
    position: relative;
    background: var(--oslo-dark);
    color: var(--oslo-light);
    overflow: hidden;
    padding: 0;
    margin: 0;
}

/* ==================== ANIMATED PARTICLES CANVAS ==================== */
.oslo-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.3;
}

/* ==================== TOP ACCENT LINE ==================== */
.oslo-footer__topline {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--oslo-gradient-gold);
    z-index: 10;
    box-shadow: 0 2px 20px rgba(212, 175, 55, 0.5);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ==================== CONTAINER ==================== */
.oslo-footer__container {
    position: relative;
    z-index: 5;
    max-width: 1400px;
    margin: 0 auto;
    padding: 80px 40px 30px;
}

/* ==================== GRID LAYOUT ==================== */
.oslo-footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 60px;
    margin-bottom: 60px;
}

@media (min-width: 1024px) {
    .oslo-footer__grid {
        grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
    }
}

/* ==================== COLUMN STYLES ==================== */
.oslo-footer__col {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.oslo-footer__col:nth-child(1) { animation-delay: 0.1s; }
.oslo-footer__col:nth-child(2) { animation-delay: 0.2s; }
.oslo-footer__col:nth-child(3) { animation-delay: 0.3s; }
.oslo-footer__col:nth-child(4) { animation-delay: 0.4s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== BRAND SECTION ==================== */
.oslo-footer__brand {
    position: relative;
}

.oslo-brand-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.oslo-brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--oslo-gradient-gold);
    border-radius: 50%;
    font-size: 28px;
    color: var(--oslo-dark);
    box-shadow: var(--oslo-shadow-lg);
    animation: rotate360 20s linear infinite;
    transition: var(--oslo-transition);
}

.oslo-brand-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(212, 175, 55, 0.6);
}

@keyframes rotate360 {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.oslo-brand-name {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: 3px;
    background: var(--oslo-gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
}

.oslo-brand-name em {
    font-style: italic;
    font-weight: 300;
}

.oslo-brand-tagline {
    font-size: 15px;
    line-height: 1.8;
    color: #b8c7d6;
    margin-bottom: 25px;
    font-weight: 300;
    letter-spacing: 0.5px;
}

.oslo-brand-stars {
    display: flex;
    gap: 8px;
    margin-bottom: 30px;
    font-size: 18px;
}

.oslo-brand-stars i {
    color: var(--oslo-gold);
    filter: drop-shadow(0 2px 4px rgba(244, 208, 63, 0.4));
    animation: twinkle 2s ease-in-out infinite;
}

.oslo-brand-stars i:nth-child(1) { animation-delay: 0s; }
.oslo-brand-stars i:nth-child(2) { animation-delay: 0.2s; }
.oslo-brand-stars i:nth-child(3) { animation-delay: 0.4s; }
.oslo-brand-stars i:nth-child(4) { animation-delay: 0.6s; }
.oslo-brand-stars i:nth-child(5) { animation-delay: 0.8s; }

@keyframes twinkle {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.9); }
}

/* ==================== SOCIAL BUTTONS ==================== */
.oslo-footer__social {
    display: flex;
    gap: 15px;
}

.oslo-social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    color: var(--oslo-light);
    font-size: 18px;
    transition: var(--oslo-transition);
    position: relative;
    overflow: hidden;
}

.oslo-social-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--oslo-gradient-gold);
    transform: scale(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 50%;
    z-index: -1;
}

.oslo-social-btn:hover {
    border-color: var(--oslo-gold);
    color: var(--oslo-dark);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(212, 175, 55, 0.4);
}

.oslo-social-btn:hover::before {
    transform: scale(1);
}

/* ==================== COLUMN TITLES ==================== */
.oslo-footer__col-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--oslo-light);
    margin-bottom: 25px;
    padding-bottom: 15px;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.oslo-footer__col-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--oslo-gradient-gold);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.oslo-footer__col:hover .oslo-footer__col-title::after {
    width: 100px;
}

/* ==================== LINKS ==================== */
.oslo-footer__links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.oslo-footer__links li {
    margin-bottom: 12px;
    transform: translateX(0);
    transition: transform 0.3s ease;
}

.oslo-footer__links li:hover {
    transform: translateX(8px);
}

.oslo-footer__links a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #b8c7d6;
    text-decoration: none;
    font-size: 15px;
    font-weight: 400;
    transition: var(--oslo-transition);
    position: relative;
}

.oslo-footer__links a i {
    font-size: 10px;
    color: var(--oslo-gold);
    transition: var(--oslo-transition);
}

.oslo-footer__links a:hover {
    color: var(--oslo-gold);
}

.oslo-footer__links a:hover i {
    transform: translateX(5px);
}

/* ==================== NEWSLETTER SECTION ==================== */
.oslo-newsletter__desc {
    font-size: 14px;
    color: #b8c7d6;
    margin-bottom: 20px;
    line-height: 1.6;
}

.oslo-newsletter__wrap {
    margin-bottom: 30px;
}

.oslo-newsletter__row {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    animation: slideIn 0.6s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.oslo-newsletter__row input {
    flex: 1;
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(212, 175, 55, 0.2);
    border-radius: 30px;
    color: var(--oslo-light);
    font-size: 14px;
    transition: var(--oslo-transition);
    outline: none;
}

.oslo-newsletter__row input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.oslo-newsletter__row input:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--oslo-gold);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.1);
}

.oslo-newsletter__row button {
    width: 50px;
    height: 50px;
    background: var(--oslo-gradient-gold);
    border: none;
    border-radius: 50%;
    color: var(--oslo-dark);
    font-size: 16px;
    cursor: pointer;
    transition: var(--oslo-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--oslo-shadow-md);
}

.oslo-newsletter__row button:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
}

.oslo-newsletter__row button:active {
    transform: scale(0.95) rotate(0deg);
}

.oslo-newsletter__msg {
    font-size: 13px;
    padding: 8px 15px;
    border-radius: 20px;
    text-align: center;
    opacity: 0;
    transform: translateY(-10px);
    transition: var(--oslo-transition);
}

.oslo-newsletter__msg.show {
    opacity: 1;
    transform: translateY(0);
}

.oslo-newsletter__msg.success {
    background: rgba(46, 204, 113, 0.2);
    border: 1px solid rgba(46, 204, 113, 0.4);
    color: #2ecc71;
}

.oslo-newsletter__msg.error {
    background: rgba(231, 76, 60, 0.2);
    border: 1px solid rgba(231, 76, 60, 0.4);
    color: #e74c3c;
}

/* ==================== CONTACT INFO ==================== */
.oslo-contact-info {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.oslo-contact-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--oslo-gold);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.oslo-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    color: #b8c7d6;
    font-size: 14px;
    line-height: 1.6;
    transition: var(--oslo-transition);
    padding: 8px;
    border-radius: 8px;
}

.oslo-contact-item:hover {
    background: rgba(255, 255, 255, 0.03);
    color: var(--oslo-light);
}

.oslo-contact-item i {
    color: var(--oslo-gold);
    font-size: 16px;
    min-width: 20px;
    margin-top: 2px;
}

.oslo-contact-item a {
    color: inherit;
    text-decoration: none;
    transition: var(--oslo-transition);
}

.oslo-contact-item a:hover {
    color: var(--oslo-gold);
}

.oslo-contact-item address {
    font-style: normal;
    line-height: 1.7;
}

/* ==================== DIVIDER ==================== */
.oslo-footer__divider {
    text-align: center;
    margin: 50px 0;
    position: relative;
}

.oslo-footer__divider::before,
.oslo-footer__divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: calc(50% - 40px);
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        rgba(212, 175, 55, 0.3),
        transparent
    );
}

.oslo-footer__divider::before {
    left: 0;
}

.oslo-footer__divider::after {
    right: 0;
}

.oslo-divider__ornament {
    display: inline-block;
    font-size: 24px;
    color: var(--oslo-gold);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.2); }
}

/* ==================== BOTTOM SECTION ==================== */
.oslo-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    padding: 30px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.oslo-footer__copy {
    font-size: 14px;
    color: #8b9caa;
    margin: 0;
}

.oslo-footer__copy strong {
    background: var(--oslo-gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.oslo-footer__separator {
    margin: 0 10px;
    color: rgba(255, 255, 255, 0.2);
}

.oslo-footer__copy .fa-heart {
    color: #e74c3c;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    10%, 30% { transform: scale(1.1); }
    20%, 40% { transform: scale(1); }
}

/* ==================== BADGES ==================== */
.oslo-footer__badges {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.oslo-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 25px;
    font-size: 13px;
    color: #b8c7d6;
    transition: var(--oslo-transition);
    cursor: default;
}

.oslo-badge:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--oslo-gold);
    color: var(--oslo-light);
    transform: translateY(-2px);
    box-shadow: var(--oslo-shadow-sm);
}

.oslo-badge i {
    color: var(--oslo-gold);
    font-size: 14px;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .oslo-footer__container {
        padding: 60px 20px 20px;
    }

    .oslo-footer__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .oslo-brand-name {
        font-size: 26px;
    }

    .oslo-footer__bottom {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    .oslo-footer__badges {
        justify-content: center;
    }

    .oslo-footer__col-title {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .oslo-newsletter__row {
        flex-direction: column;
    }

    .oslo-newsletter__row button {
        width: 100%;
        border-radius: 30px;
    }

    .oslo-footer__badges {
        flex-direction: column;
        width: 100%;
    }

    .oslo-badge {
        justify-content: center;
    }
}

/* ==================== ACCESSIBILITY ==================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus styles for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 3px solid var(--oslo-gold);
    outline-offset: 3px;
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}