:root {
    /* Main colors */
    --primary-color: #8B2635;
    --primary-hover: #A73142;
    --accent-color: #C9485B;
    
    /* Text colors */
    --text-primary: #2d1519;
    --text-secondary: #8B6E70;
    
    /* Background colors */
    --bg-white: #FFF5EB;
    --bg-light: #FFEFD5;
    --bg-gray: #F5E6E8;
    
    /* Border colors */
    --border-light: #D4A5A5;
    
    /* Success colors */
    --success-color: #4A7C59;
    --success-bg: #E8F5E9;
    
    /* Error colors */
    --error-color: #C62828;
    --error-bg: #FFEBEE;
    
    /* Shadows and overlays */
    --shadow-light: rgba(139, 38, 53, 0.08);
    --overlay-transparent: rgba(255, 255, 255, 0);
    --overlay-semi: rgba(255, 248, 245, 0.85);
    --overlay-solid: rgba(255, 248, 245, 1);
    
    /* Floral pattern colors */
    --floral-bg-color: #d1cdc8;
    --floral-pattern-color: #a3918b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Parallax Background */
.parallax-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 200vh;
    background-image: 
        linear-gradient(to bottom, var(--overlay-transparent) 0%, var(--overlay-transparent) 60%, var(--overlay-semi) 85%, var(--overlay-solid) 100%),
        url('../couple.png');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    z-index: -1;
    transform: translateZ(0);
    will-change: transform;
}

/* Fade in on scroll animation */
.fade-in-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.container {
    max-width: 500px;
    margin: 0 auto;
    padding: 30px 4px;
    position: relative;
    z-index: 1;
}

/* Language Selector */
.language-selector {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
    padding: 10px;
}

.lang-btn {
    background: var(--bg-white);
    border: 2px solid var(--border-light);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85em;
    font-weight: 600;
    transition: all 0.3s ease;
    color: var(--text-primary);
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
}

.lang-btn:hover {
    transform: translateY(-2px);
    border-color: var(--accent-color);
    box-shadow: 0 2px 8px var(--shadow-light);
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--bg-white);
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px var(--shadow-light);
}

header {
    text-align: center;
    margin-bottom: 60px;
    padding: 40px 0 20px 0;
}

h1 {
    font-size: 2.5em;
    color: var(--text-primary);
    margin-bottom: 5px;
    font-weight: 300;
    letter-spacing: 1px;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.9), 0 0 20px rgba(255, 255, 255, 0.7), 0 2px 4px rgba(255, 255, 255, 0.5);
}

.ampersand {
    color: var(--accent-color);
    font-style: italic;
    font-size: 1.2em;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.9), 0 0 20px rgba(255, 255, 255, 0.7), 0 2px 4px rgba(255, 255, 255, 0.5);
}

.subtitle {
    font-size: 0.95em;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 15px;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.9), 0 0 15px rgba(255, 255, 255, 0.6), 0 2px 4px rgba(255, 255, 255, 0.4);
}

.wedding-info p {
    margin: 8px 0;
    font-size: 0.95em;
    text-align: center;
}

.label-info {
    font-weight: 600;
    color: var(--text-primary);
}

.with-flowers {
    padding: 12px;
    background-color: var(--floral-bg-color);
    box-shadow: 0 0px 7px rgba(0, 0, 0, 0.5);
    position: relative;
}

.with-flowers::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--floral-pattern-color);
    -webkit-mask-image: url('../floralPattern.png');
    -webkit-mask-size: 45%;
    -webkit-mask-repeat: repeat;
    -webkit-mask-position: center;
    mask-image: url('../floralPattern.png');
    mask-size: 45%;
    mask-repeat: repeat;
    mask-position: center;
    pointer-events: none;
    z-index: 0;
    /* iOS Safari fix for mask rendering in 3D context */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    will-change: transform;
}

.with-flowers > * {
    position: relative;
    z-index: 2;
}

.form-container {
    background: var(--bg-white);
    padding: 10px;
    border-radius: 0;
    box-shadow: 0 2px 10px var(--shadow-light);
    margin-bottom: 30px;
}

.form-middle {
    background: var(--bg-white);
    padding: 10px;
    border-top: 3px solid var(--primary-color);
    box-shadow: 0 0px 10px rgba(0, 0, 0, 0.18);
}

.form-inner {
    background: var(--bg-white);
    padding: 15px;
}

.section-title {
    text-align: center;
    font-size: 1.8em;
    color: var(--text-primary);
    font-weight: 400;
    letter-spacing: 1.5px;
    margin-bottom: 25px;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.9), 0 0 20px rgba(255, 255, 255, 0.7), 0 2px 4px rgba(255, 255, 255, 0.5);
}

.collapsible-header {
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    transition: color 0.3s ease;
}

.collapsible-header:hover {
    color: var(--primary-color);
}

.toggle-icon {
    font-size: 0.7em;
    transition: transform 0.3s ease;
    display: inline-block;
}

.collapsible-header.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.present-section-content {
    max-height: 2000px;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.3s ease;
    opacity: 1;
}

.present-section-content.collapsed {
    max-height: 0;
    opacity: 0;
}

/* IBAN Section Styles */
.iban-section {
    margin-bottom: 30px;
}

.iban-box {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border: 2px solid var(--primary-color);
}

.iban-label {
    font-size: 0.85em;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.iban-number {
    font-size: 1.2em;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
    font-family: 'Courier New', monospace;
    padding: 10px;
    background: white;
    border-radius: 8px;
    display: inline-block;
}

/* Present Shop Styles */
.present-shop {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 20px 0 10px 0;
}

.present-container {
    flex: 1;
    overflow: hidden;
    padding: 10px 0;
}

.present-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    gap: 20px;
}

.present-item {
    flex: 0 0 calc(100% - 0px);
    max-width: 100%;
    margin-bottom: 0;
    perspective: 1000px;
    -webkit-perspective: 1000px;
    height: 400px;
    /* iOS Safari fix */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

.present-item-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s;
    transform-style: preserve-3d;
    -webkit-transform-style: preserve-3d;
    /* iOS Safari fix */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

.present-item.flipped .present-item-inner {
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
}

.present-front, .present-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    /* iOS Safari fix - explicit transform and z-index */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    z-index: 1;
}

.present-front {
    cursor: pointer;
    pointer-events: auto;
}

.present-item.flipped .present-front {
    pointer-events: none;
}

.present-back {
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
    pointer-events: none;
    z-index: 0;
}

.present-item.flipped .present-back {
    pointer-events: auto;
    z-index: 2;
}

.present-item .form-inner {
    text-align: center;
    min-height: 340px;
    max-height: 340px;
    display: flex;
    flex-direction: column;
}

.present-back .form-inner {
    justify-content: center;
    gap: 15px;
}

.present-back h3 {
    font-size: 1.4em;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.present-back input[type="text"] {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.3s ease;
    background: var(--bg-white);
}

.present-back input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

.present-back .btn-claim {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 5px;
}

.present-back .btn-claim:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.present-back .btn-back {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 8px;
    font-size: 0.9em;
    cursor: pointer;
    text-decoration: underline;
    margin-top: 5px;
}

.present-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 5px;
    background: var(--bg-white);
}

.present-item .form-inner h3 {
    font-size: 1.4em;
    color: var(--text-primary);
    margin-bottom: 5px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.present-item .form-inner p {
    color: var(--text-secondary);
    font-size: 0.95em;
    line-height: 1.6;
    margin-bottom: 5px;
    flex-grow: 1;
}

.present-price {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 5px;
}

.btn-more-info {
    margin-top: 10px;
    padding: 8px 16px;
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 6px;
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-more-info:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Reserved present styles */
.present-item.reserved {
    opacity: 0.6;
    pointer-events: none;
}

.present-item.reserved .present-front {
    cursor: not-allowed;
}

.present-item.reserved .form-inner {
    position: relative;
}

.reserved-label {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(139, 38, 53, 0.9);
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.85em;
    font-weight: 600;
    z-index: 10;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.present-item.reserved .present-image,
.present-item.reserved h3,
.present-item.reserved p,
.present-item.reserved .present-price {
    filter: grayscale(100%);
}

.shop-nav {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--primary-color);
    color: white;
    font-size: 1.8em;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 10;
}

.shop-nav:hover {
    background: var(--primary-hover);
    transform: scale(1.1);
}

.shop-nav:active {
    transform: scale(0.95);
}

.shop-nav:disabled {
    background: var(--border-light);
    cursor: not-allowed;
    transform: none;
}

.shop-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
    margin-bottom: 30px;
    max-width: 150px;
    margin-left: auto;
    margin-right: auto;
}

.shop-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--border-light);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.shop-dot.active {
    background-color: var(--primary-color);
    transform: scale(1.3);
}

.shop-dot:hover {
    background-color: var(--accent-color);
}

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

.name-input-container {
    display: flex;
    gap: 8px;
    align-items: center;
}

.name-input-container input {
    flex: 1;
}

.add-name-btn {
    background: var(--bg-white);
    color: var(--text-primary);
    border: 2px solid var(--border-light);
    padding: 10px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85em;
    font-weight: 600;
    transition: all 0.3s;
    text-align: center;
    white-space: nowrap;
    flex-shrink: 0;
    min-width: 100px;
    max-width: 140px;
}

.add-name-btn:hover {
    background-color: var(--accent-color);
    color: var(--bg-white);
    border-color: var(--accent-color);
    transform: translateY(-1px);
}

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

.names-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
    min-height: 20px;
}

.name-tag {
    background: linear-gradient(135deg, rgba(186, 163, 149, 0.2), rgba(143, 162, 149, 0.2));
    padding: 8px 12px;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9em;
    animation: slideIn 0.3s ease;
    border: 1px solid var(--border-light);
}

.name-tag span {
    color: var(--text-primary);
}

.remove-name-btn {
    background: rgba(231, 76, 60, 0.8);
    color: white;
    border: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.8em;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    padding: 0;
    line-height: 1;
}

.remove-name-btn:hover {
    background: rgba(192, 57, 43, 1);
    transform: scale(1.1);
}

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

label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

input[type="text"],
input[type="email"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 10px;
    border: none;
    border-bottom: 1px solid var(--border-light);
    font-family: 'Segoe UI', sans-serif;
    font-size: 0.95em;
    background: var(--bg-light);
    transition: all 0.3s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-bottom-color: var(--accent-color);
    background: var(--bg-white);
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-top: 10px;
}

.radio-option {
    flex: 1;
}

input[type="radio"] {
    display: none;
}

.radio-label {
    display: block;
    padding: 12px;
    border: 2px solid var(--border-light);
    border-radius: 4px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
    font-size: 0.9em;
}

input[type="radio"]:checked + .radio-label {
    background-color: var(--accent-color);
    color: var(--bg-white);
    border-color: var(--accent-color);
}

.button-group {
    display: flex;
    gap: 10px;
    margin-top: 30px;
}

button {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 0;
    font-size: 0.95em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Segoe UI', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-submit {
    background-color: var(--primary-color);
    color: var(--bg-white);
}

.btn-submit:hover {
    background-color: var(--primary-hover);
}

.btn-reset {
    background-color: var(--bg-gray);
    color: var(--text-primary);
}

.btn-reset:hover {
    background-color: var(--border-light);
}

.success-message,
.error-message {
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    display: none;
    font-weight: 500;
}

.success-message {
    background-color: var(--success-bg);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.error-message {
    background-color: var(--error-bg);
    color: var(--error-color);
    border-left: 4px solid var(--error-color);
}

footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85em;
    margin-top: 40px;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.9), 0 0 15px rgba(255, 255, 255, 0.6), 0 2px 4px rgba(255, 255, 255, 0.4);
}