:root {
    --bg-dark: #090d16;
    --card-bg: #111726;
    --accent-cyan: #00B4D8;
    --text-main: #ffffff;
    --text-muted: #7A90B4;
    --border-color: rgba(122, 144, 180, 0.15);
}

body {
    background-color: var(--bg-dark);
    background-image: 
        linear-gradient(rgba(122, 144, 180, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(122, 144, 180, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center top;
    font-family: 'DM Sans', sans-serif;
    margin: 0;
    overflow-x: hidden;
}

.btn-primary-cta {
    background: linear-gradient(135deg, #00B4D8 0%, #0077B6 100%);
    color: white;
    border: none;
    padding: 14px 28px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    font-size: 16px;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 180, 216, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 180, 216, 0.4);
}

.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.10);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.6s ease;
}
.cart-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.cart-popup-box {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 760px;
    max-width: 95%;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
}
.cart-popup-box.active {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

.cart-close-x {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 28px;
    cursor: pointer;
    transition: color 0.2s;
    z-index: 10;
}
.cart-close-x:hover {
    color: var(--text-main);
}

.cart-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    position: relative;
}

.cart-form-side {
    padding: 40px;
    border-right: 1px solid var(--border-color);
    position: relative; 
    background-color: var(--card-bg);
}

.cart-grid-bg-left {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(122, 144, 180, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(122, 144, 180, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: left top;
    z-index: 1;
    pointer-events: none;
    -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 70%);
    mask-image: linear-gradient(to bottom, black 0%, transparent 70%);
}

.cart-title, .cart-subtitle, .cart-input-group, .btn-checkout, .cart-secure-footer, .req-warning-text, .terms-text-wrapper {
    position: relative;
    z-index: 2; 
}

.cart-title {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    color: var(--text-main);
    font-size: 24px;
    margin: 0 0 8px 0;
}
.cart-subtitle {
    color: var(--text-muted);
    font-size: 14px;
    margin: 0 0 24px 0; 
}

.cart-input-group {
    margin-bottom: 15px; 
    display: flex;
    flex-direction: column;
}
.cart-input-group label {
    color: var(--text-main);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 5px; 
    text-align: left;
}
/* UKLONJENI SVI !important BLOKATORI SA INPUT POLJA */
.cart-input-group input {
    background-color: #090d16;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 9px 12px; 
    color: white;
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
    box-sizing: border-box;
}
.cart-input-group input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 2px rgba(0, 180, 216, 0.2);
}

.cart-input-group input:-webkit-autofill,
.cart-input-group input:-webkit-autofill:hover, 
.cart-input-group input:-webkit-autofill:focus, 
.cart-input-group input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 30px #090d16 inset !important;
    -webkit-text-fill-color: white !important;
    transition: background-color 5000s ease-in-out 0s;
}

.input-hint {
    color: var(--text-muted);
    font-size: 11px;
    margin-top: 5px;
    opacity: 0.8;
    text-align: left;
}

/* ==========================================================================
   🚨 ISPRAVLJENE ANIMACIJE VALIDACIJE (POVRATAK NA "OSNOVU")
   ========================================================================== */
.req-warning-text {
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 6px;
    transition: color 0.2s ease;
}

@keyframes errorBlink {
    0%, 33%, 66%, 100% { color: #ff4d4d; }
    16%, 50%, 83% { color: #ffffff; }
}

.blink-active {
    animation: errorBlink 1s linear forwards;
}

@keyframes borderBlink {
    0%, 33%, 66%, 100% { 
        border-color: #ff4d4d; 
        box-shadow: 0 0 0 2px rgba(255, 77, 77, 0.4); 
    }
    16%, 50%, 83% { 
        border-color: rgba(122, 144, 180, 0.15); 
        box-shadow: none; 
    }
}

input.input-error-blink,
.cart-input-group input.input-error-blink:focus {
    animation: borderBlink 1s linear forwards !important;
    outline: none !important;
}
/* ========================================================================== */

.terms-text-wrapper {
    text-align: center;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.terms-link {
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 600;
}
.terms-link:hover {
    text-decoration: underline;
}

.btn-checkout {
    background: linear-gradient(135deg, #00B4D8 0%, #0077B6 100%) !important;
    color: white !important;
    border: none !important;
    width: 100%;
    padding: 14px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    font-size: 15px;
    border-radius: 6px;
    cursor: pointer;
    margin-top: 5px;
    transition: opacity 0.2s;
    box-sizing: border-box;
}
.btn-checkout:hover {
    opacity: 0.9;
}
.cart-secure-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 16px;
}

.cart-summary-side {
    background-color: rgba(9, 13, 22, 0.4);
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    position: relative;
}

.cart-grid-bg-right {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(122, 144, 180, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(122, 144, 180, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: left top;
    z-index: 1;
    pointer-events: none;
    -webkit-mask-image: linear-gradient(to top, black 0%, transparent 70%);
    mask-image: linear-gradient(to top, black 0%, transparent 70%);
}

.product-header, .cart-price-box, .cart-divider, .cart-value-list, .cart-notify-wrapper {
    position: relative;
    z-index: 2;
}

.product-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.product-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
}

.product-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-name {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    color: var(--text-main);
    font-size: 17px;
    line-height: 1.1;
    text-align: left;
}

.product-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 3px;
    text-transform: uppercase;
    text-align: left;
}

.cart-price-box {
    margin: 24px 0;
    color: var(--text-main);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    font-size: 36px;
    text-align: left;
}
.cart-currency {
    font-size: 20px;
    vertical-align: super;
}
.cart-decimal {
    font-size: 24px;
}
.cart-period {
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 400;
}
.cart-divider {
    height: 1px;
    background-color: var(--border-color);
    margin-bottom: 24px;
}
.cart-value-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.cart-value-list li {
    color: var(--text-main);
    font-size: 13px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    text-align: left;
}
.cart-bullet {
    color: var(--accent-cyan);
    font-weight: bold;
    margin-right: 8px;
}

.cart-notify-wrapper {
    margin-top: auto; 
    display: flex;
    justify-content: center; 
    align-items: center;
    padding-top: 20px;
}

.custom-checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 13px;
    user-select: none;
    transition: color 0.2s;
}

.custom-checkbox-label:hover {
    color: var(--text-main);
}

.custom-checkbox-label input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.custom-checkmark {
    height: 18px;
    width: 18px;
    background-color: #090d16;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-right: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.custom-checkbox-label:hover input ~ .custom-checkmark {
    border-color: var(--accent-cyan);
}

.custom-checkbox-label input:checked ~ .custom-checkmark {
    background-color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.custom-checkmark:after {
    content: "";
    display: none;
}

.custom-checkbox-label input:checked ~ .custom-checkmark:after {
    display: block;
}

.custom-checkbox-label .custom-checkmark:after {
    width: 4px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-bottom: 2px;
}

.btn-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: btnSpin 0.8s linear infinite;
    margin-left: 8px;
    vertical-align: middle;
}

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

.mobile-logo-wrapper, .mobile-appended-content {
    display: none !important;
}

/* ==========================================================================
   📱 MOBILNI RESPONSIVE DIZAJN (EKRANI MANJI OD 768px)
   ========================================================================== */
@media (max-width: 768px) {
    .cart-popup-box {
        width: 100% !important;
        height: 100% !important;
        max-width: 100% !important;
        max-height: 100% !important;
        border-radius: 0 !important;
        border: none !important;
        top: 0 !important;
        left: 0 !important;
        transform: none !important;
        overflow-y: auto !important;
    }
    .cart-grid {
        grid-template-columns: 1fr !important;
    }
    .cart-summary-side {
        display: none !important; 
    }
    .cart-form-side {
        padding: 24px 20px !important;
        border-right: none !important;
    }
    
    .cart-input-group input {
        padding: 6.75px 12px !important;
    }
    .cart-input-group {
        margin-bottom: 12px !important;
    }

    .mobile-logo-wrapper {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        margin-top: 15px !important;
        margin-bottom: 20px !important;
    }
    .mobile-logo-wrapper .cart-price-box {
        margin: 10px 0 0 0 !important;
        font-size: 32px !important;
        text-align: center !important;
    }
    .mobile-appended-content {
        display: block !important;
        margin-top: 25px !important;
        position: relative !important;
    }

    .cart-subtitle {
        white-space: nowrap !important;
        font-size: 11.5px !important;
        letter-spacing: -0.2px !important;
        margin-bottom: 18px !important;
    }

    .mobile-back-home-wrapper {
        text-align: center !important;
        margin-top: 30px !important;
        margin-bottom: 40px !important;
        position: relative !important;
        z-index: 5 !important;
    }
    .mobile-back-link {
        color: var(--text-muted) !important;
        text-decoration: none !important;
        font-size: 14px !important;
    }

    .cart-grid-bg-bottom-mobile {
        position: absolute !important;
        bottom: 0 !important;
        left: -20px !important;
        width: calc(100% + 40px) !important;
        height: 350px !important;
        background-image: 
            linear-gradient(rgba(122, 144, 180, 0.05) 1px, transparent 1px),
            linear-gradient(90deg, rgba(122, 144, 180, 0.05) 1px, transparent 1px) !important;
        background-size: 40px 40px !important;
        background-position: center bottom !important;
        z-index: 1 !important;
        pointer-events: none !important;
        -webkit-mask-image: linear-gradient(to top, black 60%, transparent 0%) !important;
        mask-image: linear-gradient(to top, black 60%, transparent 0%) !important;
    }
}